Urban Audit - Metadata

Nationals that have moved into the city during the last two years

Department "Statistics of Environment, Infrastructure and Regions"

Division "Regional statistics and GIS"

Valeriya Angelova

Senior expert

2, P. Volov Str., Sofia 1038

vangelova@nsi.bg

+359 2 9857 531

Metadata last update: 01.07.2012
Number	Concept	Description
1	Data description	By the study of migrations (mechanical increase/decrease of the population) the set of persons who have changed their present address is observed. The set units are registered at the moment of the event and their number refers to 31.12. of the reference year. The migration is internal when the person changes her or his usual residence in the country, and external when the person changes her or his present address in the country with a new one outside it or the address outside the country with a new one in the country.
2	Classification used	Unified Classification of Administrative-Territorial and Territorial Units (UCATTU)
3	Coverage	Data for the mechanical movement of the Nationals into the eight cities refer to two calendar years and include all Nationals who have changed their present address in the country and from abroad to the eight cities. Data concerning the reference years 2005 and 2006 include all migrants regardless their nationality. Nationality is a variable which is obseved in NSI since 2007.
4	Unit of measure	Number
5	Reference period	Two-years periods - 2004/2005, 2005/2006, 2006/2007, 2007/2008, 2008/2009.
6	Time coverage	2005 - 2009
7	Release policy	The date of the statistical information release is shown in the Calendar of the NSI statistical surveys.
8	Dissemination format	• www.nsi.bg
9	Methodological documents	• Compilation of variable definitions - Eurostat
10	Source data	Data are collected by the NSI. • Data source for migrants is the National civil registration system (ESGRAON); • Data source for Nationals is the Information System "Demography" .
11	Frequency of data collection	Yearly
12	Data collection method	Exhaustively for all registered movements of Nationals into the eight cities during the two-years period.