Marital and extra-marital live births by districts, municipalities and place of residence



MARITAL AND EXTRA-MARITAL LIVE BIRTHS BY DISTRICTS, MUNICIPALITIES AND PLACE OF RESIDENCE IN 2019
(Number)
Districts
Municipalities
Total Urban residence Rural residence
Total Marital Extra-marital Total Marital Extra-marital Total Marital Extra-marital
Total 61 538 25 591 35 947 45 991 20 069 25 922 15 547 5 522 10 025
Blagoevgrad 2 794 1 480 1 314 1 763 885 878 1 031 595 436
Bansko 106 63 43 99 .. .. 7 .. ..
Belitsa 66 22 44 23 .. .. 43 .. ..
Blagoevgrad 724 376 348 687 357 330 37 19 18
Gotse Delchev 282 173 109 172 93 79 110 80 30
Garmen 152 68 84 - - - 152 68 84
Kresna 40 23 17 26 17 9 14 6 8
Petrich 484 244 240 302 136 166 182 108 74
Razlog 179 86 93 110 51 59 69 35 34
Sandanski 295 128 167 217 103 114 78 25 53
Satovcha 141 127 14 - - - 141 127 14
Simitli 131 83 48 60 35 25 71 48 23
Strumyani 39 9 30 - - - 39 9 30
Hadzhidimovo 71 38 33 23 8 15 48 30 18
Yakoruda 84 40 44 44 24 20 40 16 24
Burgas 3 766 1 748 2 018 2 826 1 272 1 554 940 476 464
Aytos 287 169 118 204 119 85 83 50 33
Burgas 1 855 851 1 004 1 824 836 988 31 15 16
Kameno 88 27 61 35 12 23 53 15 38
Karnobat 229 97 132 169 76 93 60 21 39
Malko Tarnovo 10 .. .. 5 .. .. 5 .. ..
Nesebar 269 108 161 170 71 99 99 37 62
Pomorie 257 111 146 171 67 104 86 44 42
Primorsko 50 19 31 28 12 16 22 7 15
Ruen 290 227 63 - - - 290 227 63
Sozopol 111 42 69 53 28 25 58 14 44
Sredets 146 25 121 87 16 71 59 9 50
Sungurlare 117 47 70 36 12 24 81 35 46
Tsarevo 57 .. .. 44 .. .. 13 .. ..
Varna 4 284 1 804 2 480 3 619 1 604 2 015 665 200 465
Avren 66 21 45 - - - 66 21 45
Aksakovo 175 63 112 105 44 61 70 19 51
Beloslav 101 44 57 74 28 46 27 16 11
Byala 28 7 21 19 .. .. 9 .. ..
Varna 3 201 1 451 1 750 3 091 1 421 1 670 110 30 80
Vetrino 26 9 17 - - - 26 9 17
Valchi Dol 79 18 61 32 8 24 47 10 37
Devnya 80 24 56 72 .. .. 8 .. ..
Dolni Chiflik 177 54 123 54 22 32 123 32 91
Dalgopol 115 42 73 46 11 35 69 31 38
Provadia 171 46 125 81 26 55 90 20 70
Suvorovo 65 25 40 45 16 29 20 9 11
Veliko Tarnovo 1 743 559 1 184 1 283 463 820 460 96 364
Veliko Tarnovo 664 240 424 582 222 360 82 18 64
Gorna Oryahovitsa 263 91 172 210 76 134 53 15 38
Elena 65 16 49 32 7 25 33 9 24
Zlataritsa 23 .. .. 20 .. .. .. .. ..
Lyaskovets 82 22 60 57 17 40 25 5 20
Pavlikeni 159 43 116 80 25 55 79 18 61
Polski Trambesh 93 23 70 30 7 23 63 16 47
Svishtov 275 91 184 223 86 137 52 5 47
Strazhitsa 104 24 80 39 14 25 65 10 55
Suhindol 15 .. .. 10 .. .. 5 .. ..
Vidin 548 146 402 352 118 234 196 28 168
Belogradchik 40 8 32 34 8 26 6 - 6
Boynitsa 4 - 4 - - - 4 - 4
Bregovo 25 .. .. 13 .. .. 12 .. ..
Vidin 311 112 199 272 105 167 39 7 32
Gramada 9 .. .. 9 .. .. - - -
Dimovo 60 5 55 10 .. .. 50 .. ..
Kula 20 .. .. 14 .. .. 6 .. ..
Makresh 4 - 4 - - - 4 - 4
Novo Selo 11 4 7 - - - 11 4 7
Ruzhintsi 38 7 31 - - - 38 7 31
Chuprene 26 .. .. - - - 26 .. ..
Vratsa 1 348 316 1 032 760 232 528 588 84 504
Borovan 54 8 46 - - - 54 8 46
Byala Slatina 194 27 167 78 16 62 116 11 105
Vratsa 489 140 349 393 128 265 96 12 84
Kozloduy 200 70 130 118 49 69 82 21 61
Krivodol 79 9 70 21 4 17 58 5 53
Mezdra 128 33 95 79 23 56 49 10 39
Mizia 35 4 31 9 .. .. 26 .. ..
Oryahovo 83 11 72 37 6 31 46 5 41
Roman 44 9 35 25 .. .. 19 .. ..
Hayredin 42 5 37 - - - 42 5 37
Gabrovo 751 242 509 606 197 409 145 45 100
Gabrovo 352 130 222 320 114 206 32 16 16
Dryanovo 54 9 45 48 .. .. 6 .. ..
Sevlievo 282 92 190 176 64 112 106 28 78
Tryavna 63 11 52 62 .. .. .. .. ..
Dobrich 1 356 508 848 920 369 551 436 139 297
Balchik 150 53 97 89 38 51 61 15 46
General Toshevo 95 34 61 46 .. .. 49 .. ..
Dobrich 162 40 122 - - - 162 40 122
Dobrich town 640 263 377 640 263 377 - - -
Kavarna 113 36 77 86 28 58 27 8 19
Krushari 31 7 24 - - - 31 7 24
Tervel 146 70 76 45 20 25 101 50 51
Shabla 19 5 14 14 .. .. 5 .. ..
Kardzhali 1 405 949 456 608 393 215 797 556 241
Ardino 73 52 21 26 21 5 47 31 16
Dzhebel 76 62 14 36 29 7 40 33 7
Kirkovo 191 133 58 - - - 191 133 58
Krumovgrad 181 98 83 31 21 10 150 77 73
Kardzhali 697 458 239 459 281 178 238 177 61
Momchilgrad 121 89 32 56 41 15 65 48 17
Chernoochene 66 57 9 - - - 66 57 9
Kyustendil 873 329 544 669 257 412 204 72 132
Bobovdol 50 17 33 43 .. .. 7 .. ..
Boboshevo 20 4 16 12 .. .. 8 .. ..
Dupnitsa 325 118 207 258 98 160 67 20 47
Kocherinovo 21 8 13 13 .. .. 8 .. ..
Kyustendil 367 146 221 293 118 175 74 28 46
Nevestino 13 6 7 - - - 13 6 7
Rila .. .. .. .. .. .. .. .. ..
Sapareva Banya 56 23 33 34 13 21 22 10 12
Treklyano .. - .. - - - .. - ..
Lovech 969 245 724 602 166 436 367 79 288
Apriltsi 13 .. .. 11 .. .. .. .. ..
Letnitsa 30 .. .. 21 .. .. 9 .. ..
Lovech 265 81 184 214 72 142 51 9 42
Lukovit 212 36 176 108 22 86 104 14 90
Teteven 146 42 104 68 11 57 78 31 47
Troyan 178 59 119 125 48 77 53 11 42
Ugarchin 67 12 55 37 4 33 30 8 22
Yablanitsa 58 5 53 18 .. .. 40 .. ..
Montana 936 292 644 575 226 349 361 66 295
Berkovitsa 128 47 81 90 39 51 38 8 30
Boychinovtsi 76 15 61 9 .. .. 67 .. ..
Brusartsi 30 4 26 5 - 5 25 4 21
Valchedram 83 16 67 21 7 14 62 9 53
Varshets 50 13 37 45 .. .. 5 .. ..
Georgi Damyanovo 7 - 7 - - - 7 - 7
Lom 148 59 89 124 54 70 24 5 19
Medkovets 37 8 29 - - - 37 8 29
Montana 321 118 203 271 110 161 50 8 42
Chiprovtsi 19 7 12 10 .. .. 9 4 5
Yakimovo 37 5 32 - - - 37 5 32
Pazardzhik 2 310 902 1 408 1 464 587 877 846 315 531
Batak 31 24 7 16 .. .. 15 .. ..
Belovo 43 19 24 19 8 11 24 11 13
Bratsigovo 59 19 40 33 6 27 26 13 13
Velingrad 360 99 261 217 44 173 143 55 88
Lesichovo 41 4 37 - - - 41 4 37
Pazardzhik 919 389 530 582 270 312 337 119 218
Panagyurishte 169 72 97 131 60 71 38 12 26
Peshtera 179 82 97 161 70 91 18 12 6
Rakitovo 141 47 94 117 36 81 24 11 13
Septemvri 262 95 167 102 38 64 160 57 103
Strelcha 56 22 34 52 22 30 4 - 4
Sarnitsa 50 30 20 34 .. .. 16 . ..
Pernik 872 345 527 753 297 456 119 48 71
Breznik 30 8 22 24 .. .. 6 .. ..
Zemen 17 8 9 13 .. .. 4 .. ..
Kovachevtsi 12 7 5 - - - 12 7 5
Pernik 656 274 382 582 242 340 74 32 42
Radomir 124 39 85 106 34 72 18 5 13
Tran 33 9 24 28 .. .. 5 .. ..
Pleven 2 002 655 1 347 1 277 506 771 725 149 576
Belene 52 19 33 45 .. .. 7 .. ..
Gulyantsi 62 14 48 29 7 22 33 7 26
Dolna Mitropolia 174 43 131 74 26 48 100 17 83
Dolni Dabnik 123 27 96 47 10 37 76 17 59
Iskar 56 16 40 27 10 17 29 6 23
Knezha 106 17 89 76 13 63 30 4 26
Levski 129 30 99 64 17 47 65 13 52
Nikopol 44 18 26 20 12 8 24 6 18
Pleven 985 401 584 752 348 404 233 53 180
Pordim 40 9 31 19 .. .. 21 .. ..
Cherven Bryag 231 61 170 124 42 82 107 19 88
Plovdiv 6 200 2 783 3 417 4 776 2 288 2 488 1 424 495 929
Asenovgrad 546 282 264 453 238 215 93 44 49
Brezovo 41 12 29 10 4 6 31 8 23
Kaloyanovo 80 28 52 - - - 80 28 52
Karlovo 415 99 316 204 65 139 211 34 177
Krichim 82 28 54 82 28 54 - - -
Kuklen 60 .. .. 58 33 25 .. .. ..
Laki 12 .. .. 10 .. .. .. .. ..
Maritsa 280 112 168 - - - 280 112 168
Perushtitsa 49 21 28 49 21 28 - - -
Plovdiv 3 342 1 623 1 719 3 342 1 623 1 719 - - -
Parvomay 181 83 98 105 56 49 76 27 49
Rakovski 320 165 155 194 112 82 126 53 73
Rodopi 235 105 130 - - - 235 105 130
Sadovo 135 48 87 23 10 13 112 38 74
Sopot 77 25 52 70 .. .. 7 .. ..
Stamboliyski 200 70 130 93 43 50 107 27 80
Saedinenie 85 27 58 48 15 33 37 12 25
Hisarya 60 19 41 35 15 20 25 4 21
Razgrad 876 458 418 398 201 197 478 257 221
Zavet 56 35 21 19 .. .. 37 .. ..
Isperih 174 91 83 69 31 38 105 60 45
Kubrat 105 52 53 39 16 23 66 36 30
Loznitsa 67 30 37 18 12 6 49 18 31
Razgrad 380 181 199 236 115 121 144 66 78
Samuil 63 45 18 - - - 63 45 18
Tsar Kaloyan 31 24 7 17 .. .. 14 .. ..
Ruse 1 508 665 843 1 212 558 654 296 107 189
Borovo 22 6 16 9 .. .. 13 .. ..
Byala 85 29 56 51 21 30 34 8 26
Vetovo 99 49 50 78 33 45 21 16 5
Dve Mogili 46 14 32 21 6 15 25 8 17
Ivanovo 43 14 29 - - - 43 14 29
Ruse 1 104 511 593 1 023 477 546 81 34 47
Slivo Pole 77 34 43 30 .. .. 47 .. ..
Tsenovo 32 8 24 - - - 32 8 24
Silistra 896 421 475 349 170 179 547 251 296
Alfatar 21 5 16 7 .. .. 14 .. ..
Glavinitsa 96 47 49 8 .. .. 88 .. ..
Dulovo 250 146 104 68 39 29 182 107 75
Kaynardzha 72 20 52 - - - 72 20 52
Silistra 300 124 176 185 81 104 115 43 72
Sitovo 35 20 15 - - - 35 20 15
Tutrakan 122 59 63 81 45 36 41 14 27
Sliven 2 291 611 1 680 1 337 451 886 954 160 794
Kotel 217 41 176 42 11 31 175 30 145
Nova Zagora 446 122 324 241 79 162 205 43 162
Sliven 1 407 422 985 901 343 558 506 79 427
Tvarditsa 221 26 195 153 18 135 68 8 60
Smolyan 646 221 425 407 129 278 239 92 147
Banite 12 .. .. - - - 12 .. ..
Borino 24 18 6 - - - 24 18 6
Devin 66 21 45 42 14 28 24 7 17
Dospat 51 32 19 10 .. .. 41 25 16
Zlatograd 49 25 24 36 16 20 13 9 4
Madan 76 18 58 50 14 36 26 4 22
Nedelino 30 13 17 25 13 12 5 - 5
Rudozem 68 17 51 27 6 21 41 11 30
Smolyan 233 68 165 188 56 132 45 12 33
Chepelare 37 .. .. 29 .. .. 8 .. ..
Sofia (stolitsa) 13 075 6 307 6 768 12 637 6 116 6 521 438 191 247
Stolichna 13 075 6 307 6 768 12 637 6 116 6 521 438 191 247
Sofia 2 056 684 1 372 1 357 487 870 699 197 502
Anton 14 .. .. - - - 14 .. ..
Bozhurishte 70 27 43 51 21 30 19 6 13
Botevgrad 336 105 231 196 74 122 140 31 109
Godech 26 7 19 23 6 17 .. .. ..
Gorna Malina 56 14 42 - - - 56 14 42
Dolna Banya 51 16 35 51 16 35 - - -
Dragoman 23 8 15 20 8 12 .. . ..
Elin Pelin 172 71 101 59 26 33 113 45 68
Etropole 106 46 60 91 46 45 15 - 15
Zlatitsa 45 17 28 38 .. .. 7 .. ..
Ihtiman 220 61 159 192 55 137 28 6 22
Koprivshtitsa 12 .. .. 12 .. .. - - -
Kostenets 90 29 61 46 16 30 44 13 31
Kostinbrod 135 64 71 102 50 52 33 14 19
Mirkovo 10 5 5 - - - 10 5 5
Pirdop 54 18 36 50 .. .. 4 .. ..
Pravets 71 13 58 25 7 18 46 6 40
Samokov 333 102 231 272 80 192 61 22 39
Svoge 134 45 89 67 28 39 67 17 50
Slivnitsa 72 26 46 62 24 38 10 .. ..
Chavdar 10 .. .. - - - 10 .. ..
Chelopech 16 5 11 - - - 16 5 11
Stara Zagora 2 794 875 1 919 2 010 740 1 270 784 135 649
Bratya Daskalovi 64 12 52 - - - 64 12 52
Gurkovo 79 18 61 45 12 33 34 6 28
Galabovo 91 26 65 72 .. .. 19 .. ..
Kazanlak 568 185 383 399 149 250 169 36 133
Maglizh 109 14 95 29 5 24 80 9 71
Nikolaevo 63 .. .. 40 .. .. 23 .. ..
Opan 13 .. .. - - - 13 .. ..
Pavel Banya 132 23 109 26 5 21 106 18 88
Radnevo 128 37 91 84 28 56 44 9 35
Stara Zagora 1 347 512 835 1 174 481 693 173 31 142
Chirpan 200 40 160 141 32 109 59 8 51
Targovishte 902 433 469 452 218 234 450 215 235
Antonovo 38 13 25 6 .. .. 32 .. ..
Omurtag 180 108 72 61 28 33 119 80 39
Opaka 46 39 7 14 .. .. 32 .. ..
Popovo 169 57 112 98 39 59 71 18 53
Targovishte 469 216 253 273 140 133 196 76 120
Haskovo 1 825 585 1 240 1 343 434 909 482 151 331
Dimitrovgrad 335 120 215 262 88 174 73 32 41
Ivaylovgrad 43 14 29 24 9 15 19 5 14
Lyubimets 100 22 78 73 .. .. 27 .. ..
Madzharovo 11 6 5 .. .. .. 8 .. ..
Mineralni Bani 47 27 20 - - - 47 27 20
Svilengrad 176 47 129 157 .. .. 19 .. ..
Simeonovgrad 98 8 90 77 .. .. 21 .. ..
Stambolovo 38 12 26 - - - 38 12 26
Topolovgrad 75 16 59 41 .. .. 34 .. ..
Harmanli 183 58 125 146 43 103 37 15 22
Haskovo 719 255 464 560 209 351 159 46 113
Shumen 1 414 656 758 852 396 456 562 260 302
Veliki Preslav 85 41 44 44 .. .. 41 .. ..
Venets 70 49 21 - - - 70 49 21
Varbitsa 80 46 34 38 20 18 42 26 16
Kaolinovo 121 72 49 12 7 5 109 65 44
Kaspichan 80 20 60 29 10 19 51 10 41
Nikola Kozlevo 84 33 51 - - - 84 33 51
Novi Pazar 126 36 90 87 24 63 39 12 27
Smyadovo 43 9 34 31 .. .. 12 .. ..
Hitrino 38 21 17 - - - 38 21 17
Shumen 687 329 358 611 310 301 76 19 57
Yambol 1 098 372 726 784 309 475 314 63 251
Bolyarovo 33 4 29 8 .. .. 25 .. ..
Elhovo 109 46 63 66 .. .. 43 .. ..
Straldzha 131 14 117 84 8 76 47 6 41
Tundzha 199 42 157 - - - 199 42 157
Yambol 626 266 360 626 266 360 - - -

.. Data is confidential according to article 25 of the Law on Statistics
13.04.2020


Euro-SDMX Metadata Structure (ESMS)

FERTILITY - Births, Live births, Birth rates, Mean age of the mother at birth and Total fertility rate
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics Department

Contact name

Nadejda Karlezhova

Contact person function

Chief expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 543

Contact fax number
Metadata update
Metadata last certified13 April 2020
Metadata last posted13 April 2020
Metadata last update13 April 2020
Statistical presentation
Data description

The births and the children born are surveyed. Registration is done at the moment of occurrence and the number is calculated as of 31.12 of the reference year. Live births and stillbirths are covered.

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS document "Birth notification".

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions) based on the current address.

Live births are used for calculation of indicators, characterizing the fertility.

Classification system

· Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

· Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU).

Sector coverage

All children born with a usual residence (current address) in the Republic of Bulgaria are included.

Statistical concepts and definitions

"Birth” is a complete expulsion or extraction from the mother of a foetus, irrespective alive or dead, that meet the following criteria: not

a) body weight at birth of 800 grams and over and / or 26 weeks of gestation;

b) body weight at birth of less than 800 grams and / or less than 26 weeks of gestation - provided that the foetus was born alive and has lived at least 3 days.

"Alive" is a foetus who shows signs of blood circulation. In absence of such signs, the foetus is considered “dead” (foetus mortuus).

“Abortion” is a loss or interruption of a pregnancy before the foetus to meet the above mentioned criteria. 

Crude birth rate is the ratio of the number of live births during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.

The total fertility rate is the sum of the age-specific fertility rates for the reference year. It represents the mean number of children that would be born alive to a woman during her lifetime if she were to pass through her childbearing years conforming to the fertility rates by age of a given year.

The net reproduction rate is the ratio between the number of women who have gave a birth during the year and the daughters born during the same year taking into account the mortality. It represents the average number of daughters that will survive until childbearing ages, born to a woman if they will experience the age-specific fertility and mortality rates of the year in question, i.e. how many girls replace a mother under the reproduction conditions during the respective year.

The age of parents at birth is calculated in completed years based on the date of birth of parents and the date of event birth.

The mean age of the mother at childbearing is calculated as a weighted average within the interval between the birth of mothers generations and children birth.

Statistical unit

Children born - live born and stillborn.

Statistical population

Total number of births.

Reference area

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions).

Time coverage

1888  - 2019 total number and by sex;

2010 - 2019 on the NSI website.

Base period

Not applicable.

Unit of measure

Number; per 1 000 population.

Reference period

Calendar year

Institutional mandate
Legal acts and other agreements

· Law on Statistics;

· Law on Civil Registration;

· Ordinance of the Ministry of Health.

· Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic statistics;

· Commission implementing regulation (EU) № 205/2014 laying down uniformed conditions for the implementation of Regulation (EU) No 1260/2013 of the European Parliament and the Council on European demographic statistics, as regards breakdowns of data, deadlines and data revisions;

Data sharing

Data are transmitted to Eurostat, UNICEF, UN ECE, World bank and other institutions on the basis of Regulation (EU) 1260/2013 of the European Parliament and of the Council on the European demographic statistics.

Confidentiality
Confidentiality - policy

· Law on Statistics;

· Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Confidentiality - data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

Release policy
Release calendar

Information is published annually according to the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute.

Release calendar access

The calendar is available on the NSI website: http://www.nsi.bg/en/node/480

User access

Data is published on the NSI website, section Population - Demography, migration and projections in accordance with the Law on Statistics and the European Statistics Code of Practice respecting the professional independence and aimed at objectivity, transparency and equal treatment of all consumers.

Frequency of dissemination

Annually

Accessibility and clarity
News release

News release "Population and demographic processes".

Publications

· Population and demographic processes;

· Statistical Reference book;

· Statistical Yearbook;

· Booklet "Bulgaria".

On-line database

Data on Fertility are available to all users of the NSI website under the heading Population - Demography, Migration and Projections - Fertility: http://www.nsi.bg/en/node/6610

Information System Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=52

Micro-data access

Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

Other

Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

Documentation on methodology

· Methodology on fertility: http://www.nsi.bg/sites/default/files/files/metadata/Pop_1_Metodology_births_en.pdf;

· Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

Quality documentation

Not available.

Quality management
Quality assurance

Not applicable.

Quality assessment

Not applicable.

Relevance
User needs

Data on fertility are presented annually to the Eurostat, UN, UNICEF, ECE, WHO and others ? questionnaires filled in annually.

At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

Data is presented to scientific institutes, universities, NGOs and others based on requests.

User satisfaction

No user' satisfaction surveys are carried out.

Completeness

Data on fertility is available by sex, weight, height, consecutive number and residence of the child (different territorial levels), place and assistance at birth, multi-foetal births, age (different groupings) of the parents, year of birth of the parents, consecutive number of the mother marriage, pregnancy, citizenship and country of birth of the mother, citizenship of the father.

Accuracy and reliability
Overall accuracy

Not applicable.

Sampling error

Not applicable.

Non-sampling error

Not applicable.

Timeliness and punctuality
Timeliness

Data is published up to the end of April of the year following the reference year.

Punctuality

Data is released according to the terms provided in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute..

Coherence and comparability

Comparability - geographical

Data is collected and processed for the different territorial units using one and the same methodology and definitions.

Comparability - over time

Changes of the methodology and definitions for different time periods are published in the survey methodology and metadata.

Coherence - cross domain

Not applicable.

Coherence - internal

Not applicable.

Cost and burden

Not applicable.

Data revision
Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Statistical processing
Source data

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS ?Birth notification?.

Frequency of data collection

Monthly

Data collection

Exhaustively for all births registered during the year.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

Data validation

Data on demographic events is checked and controlled before to be loaded in the IS "Demography".

For successful processing, the initial notification should meet the system rules on validation and control.

The processed results are validated in respect the consistency of a single table and between the tables.

Data compilation

Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

Adjustment

Not applicable.

Comment
Metadata Structure Definition in SDMX 2.1: ESMS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESMS_MSD+BNSI+2.0+SDMX.2.0.xml


ESS Standard for Quality Reports Structure (ESQRS)

FERTILITY - Births, Live births, Birth rates, Mean age of the mother at birth and Total fertility rate
Contact
Contact organisation

National Statistical Institute

Contact organisation unit

Population and Housing Fund Statistics Department

Contact name

Nadejda Karlezhova

Contact person function

Chief expert

Contact mail address

2, P. Volov Str.; 1038 Sofia, Bulgaria

Contact email address

[email protected]

Contact phone number

+359 2 9857 543

Contact fax number
Statistical presentation
Data description

The births and the children born are surveyed. Registration is done at the moment of occurrence and the number is calculated as of 31.12 of the reference year. Live births and stillbirths are covered.

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS document "Birth notification".

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions) based on the current address.

Live births are used for calculation of indicators, characterizing the fertility.

Classification system

· Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);

· Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU).

Sector coverage

All children born with a usual residence (current address) in the Republic of Bulgaria are included.

Statistical concepts and definitions

"Birth” is a complete expulsion or extraction from the mother of a foetus, irrespective alive or dead, that meet the following criteria: not

a) body weight at birth of 800 grams and over and / or 26 weeks of gestation;

b) body weight at birth of less than 800 grams and / or less than 26 weeks of gestation - provided that the foetus was born alive and has lived at least 3 days.

"Alive" is a foetus who shows signs of blood circulation. In absence of such signs, the foetus is considered “dead” (foetus mortuus).

“Abortion” is a loss or interruption of a pregnancy before the foetus to meet the above mentioned criteria. 

Crude birth rate is the ratio of the number of live births during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.

The total fertility rate is the sum of the age-specific fertility rates for the reference year. It represents the mean number of children that would be born alive to a woman during her lifetime if she were to pass through her childbearing years conforming to the fertility rates by age of a given year.

The net reproduction rate is the ratio between the number of women who have gave a birth during the year and the daughters born during the same year taking into account the mortality. It represents the average number of daughters that will survive until childbearing ages, born to a woman if they will experience the age-specific fertility and mortality rates of the year in question, i.e. how many girls replace a mother under the reproduction conditions during the respective year.

The age of parents at birth is calculated in completed years based on the date of birth of parents and the date of event birth.

The mean age of the mother at childbearing is calculated as a weighted average within the interval between the birth of mothers generations and children birth.

Statistical unit

Children born - live born and stillborn.

Statistical population

Total number of births.

Reference area

Regional breakdown of the fertility data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions).

Time coverage

1888  - 2019 total number and by sex;

2010 - 2019 on the NSI website.

Base period

Not applicable.

Statistical processing
Source data

Source of data on births and children born is the Unified System for Civil registration and Administrative Service of Population. Births are registered through a common USCRASP-CDS ?Birth notification?.

Frequency of data collection

Monthly

Data collection

Exhaustively for all births registered during the year.

Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).

Data validation

Data on demographic events is checked and controlled before to be loaded in the IS "Demography".

For successful processing, the initial notification should meet the system rules on validation and control.

The processed results are validated in respect the consistency of a single table and between the tables.

Data compilation

Data is processed by the IS "Demography" according to the rules for validation and control of the demographic events.

Adjustment

Not applicable.

Quality management
Quality assurance

Not applicable.

Quality assessment

Not applicable.

Relevance
User needs

Data on fertility are presented annually to the Eurostat, UN, UNICEF, ECE, WHO and others ? questionnaires filled in annually.

At national and regional level the main data users are ministries, agencies, national organisations and local authorities.

Data is presented to scientific institutes, universities, NGOs and others based on requests.

User satisfaction

No user' satisfaction surveys are carried out.

Completeness

Data on fertility is available by sex, weight, height, consecutive number and residence of the child (different territorial levels), place and assistance at birth, multi-foetal births, age (different groupings) of the parents, year of birth of the parents, consecutive number of the mother marriage, pregnancy, citizenship and country of birth of the mother, citizenship of the father.

Data completeness - rate

100%

Accuracy and reliability
Overall accuracy

Not applicable.

Sampling error

Not applicable.

Sampling errors - indicators

Not applicable.

 

Non-sampling error

Not applicable.

Coverage error

Not applicable.

 

Over-coverage - rate

Not applicable

Common units - proportion

Not applicable

Measurement error

Not applicable

Non response error

Not applicable

Unit non-response - rate

Not applicable

Item non-response - rate

Not applicable

Processing error

Not applicable

Imputation - rate

Not applicable

Model assumption error

Not applicable

Seasonal adjustment

Not applicable

Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Data revision - average size
Timeliness and punctuality
Timeliness

Data is published up to the end of April of the year following the reference year.

Time lag - first results

4 months after the reference year

Time lag - final results

4 months after the reference year

Punctuality

Data is released according to the terms provided in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute..

Punctuality - delivery and publication

Nor applicable

Coherence and comparability

Comparability - geographical

Data is collected and processed for the different territorial units using one and the same methodology and definitions.

Asymmetry for mirror flows statistics - coefficient

Not applicable

Comparability - over time

Changes of the methodology and definitions for different time periods are published in the survey methodology and metadata.

Length of comparable time series

2000 onwards

Coherence - cross domain

Not applicable.

Coherence - sub annual and annual statistics

Not applicable

Coherence - National Accounts

Not applicable

Coherence - internal

Not applicable.

Accessibility and clarity
News release

News release "Population and demographic processes".

Publications

· Population and demographic processes;

· Statistical Reference book;

· Statistical Yearbook;

· Booklet "Bulgaria".

On-line database

Data on Fertility are available to all users of the NSI website under the heading Population - Demography, Migration and Projections - Fertility: http://www.nsi.bg/en/node/6610

Information System Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=52

Data tables - consultations

not applicable

Micro-data access

Anonymised individual data can be provide for scientific and research purposes, and for individual request according to the Rules for the provision of anonymised individual data for scientific and research purposes.

Other

Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.

Metadata - consultations

not applicable

Documentation on methodology

· Methodology on fertility: http://www.nsi.bg/sites/default/files/files/metadata/Pop_1_Metodology_births_en.pdf;

· Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.

Metadata completeness – rate

100%

Quality documentation

Not available.

Cost and burden

Not applicable.

Confidentiality
Confidentiality - policy

· Law on Statistics;

· Regulation (EC) No 223/2009 on European statistics (recital 24 and Article 20(4)) of 11 March 2009 (OJ L 87, p. 164), stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society.

Confidentiality – data treatment

Individual data are not published in accordance with article 25 of the Law on Statistics. The publishing of individual data can be performed only in accordance with article 26 of the same law.

Comment
Metadata Structure Definition in SDMX 2.1: ESQRS_MSD+BNSI+2.0+SDMX.2.1.xml
Metadata Structure Definition in SDMX 2.0: ESQRS_MSD+BNSI+2.0+SDMX.2.0.xml
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