Services producer price indices

Economic Activities Eurostat code 2015=100 Previous quarter=100 Corresponding quarter of 2020=100
Freight transport by road H494 102.33 100.47 99.95
Sea and costal water transport H501_502 82.02 99.90 94.32
Air transport H51 100.95 101.14 96.11
Warehousing and storage H521 98.69 98.14 97.71
Cargo handling H5224 115.38 100.08 100.22
Post and courier services H53 110.81 101.14 101.77
of which: Post services H531 116.09 100.00 100.00
Courier services H532 110.46 101.44 102.24
Telecommunications J61 94.24 100.00 101.72
Computer programming, consultancy and related activities J62 124.33 100.05 104.02
Information service activities J63 111.08 100.95 101.94
Legal, accounting and management consultancy activities M69_M702 111.24 100.93 101.70
Architectural and engineering activities; technical testing and analysis M71 114.26 99.56 102.41
Advertising and market research M73 110.13 100.90 101.49
Employment activities N78 120.16 100.38 100.94
Security and investigation activities N80 118.79 103.13 103.85
Cleaning activities N812 105.01 100.46 100.54
SERVICE PRODUCER PRICES - Services producer price indices (SPPI)
Contact organisation

National statistical institute

Contact organisation unit

"Short-term Business Statistics and Transport Statistics" Department

Contact name

Nevena Panagonova

Contact person function

State expert

Contact mail address

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

Contact email address

[email protected]

Contact phone number

359 2 9857 170

Contact fax number
Metadata update
Metadata last certified01 June 2018
Metadata last posted01 June 2018
Metadata last update01 June 2018
Statistical presentation
Data description

The quarterly SPPI provide information on changes in the prices of a wide range of economic activities according to the Classification of Economic Activities (CEA-2008). Data are collected with a sample survey from enterprises from the corresponding economic activities. The indices are calculated on the basis of the representative services, weighted with the revenues of the enterprises from the base year. SPPI are used as deflators in national accounts and economic comparisons, predictions and analysis.

Classification system

· Classification of Economic Activities (CEA-2008, for international use NACE.BG-2008);

· Classification of Products by Economic Activities (CPEA-2008, for international use CPA.BG-2008).

Sector coverage

SPPI are calculated in economic activities with a 2-digit, 3-digit or 4-digit code comprising the sectors H, J, M and N of the NACE.BG-2008.

Statistical concepts and definitions

SPPI is defined as a price index that measures the average change in prices of services produced and sold by producers residents.

There are mainly the prices of services intended for use by business.

Detailed definition of indicators is given in Regulation (EC) No 1503/2006.

Statistical unit

Information for calculating the indices derived from the quarterly survey of producer prices of companies.

Statistical population

Fixed panel sample covering all enterprises in a specific business with annual turnover above 70%.

Reference area

The indices are calculated and published total for the territory of Republic of Bulgaria.

Time coverage

From I-st quarter 2006

Base period

Year 2015=100

Unit of measure

Indexes (%)

Reference period


Institutional mandate
Legal acts and other agreements

· Council Regulation (EC) No 1165/98 of 19 May 1998 concerning short-term statistics;

· Regulation (EC) No 1158/2005 of the European Parliament and of the Council of 6 July 2005 amending Council Regulation (EC) No 1165/98 concerning short-term statistics;

· Commission Regulation (EC) No 1503/2006 of 28 September 2006 implementing and amending Council Regulation (EC) No 1165/98 concerning short-term statistics as regards definitions of variables, list of variables and frequency of data compilation;

· Commission Regulation (EC) No 472/2008 of 29 May 2008 implementing Council Regulation (EC) No 1165/98 concerning short-term statistics as regards the first base year to be applied for time series in NACE Revision 2 and, for time series prior to 2009 to be transmitted according to NACE Revision 2, the level of detail, the form, the first reference period, and the reference period.

Data sharing

The indicators are transmitted to Eurostat at the same time with their national publication.

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

Article 25 of the Law of Statistics defines the criteria by which cannot be distributed or published statistical information. Statistical information which aggregates data about less than three statistical units or about a population in which the relative share of the value of a surveyed parameter of a single unit exceeds 85 percent of the value of such parameter for all units in the population.

Confidential data, accordance with the Law of Statistics not publish. In order not to identify individual data using the method of suppression or aggregation of information disclosed.

Release policy
Release calendar

The date for publication of statistical information is specified in the Release Calendar presenting the results of the statistical surveys carried out by the National Statistical Institute. Price indices are published 60 days after the end of the quarter.

Release calendar access

The calendar is available on the NSI website:

User access

Data for SPPI are published on the NSI website, section Business Statistics in accordance with the Statistics Act and the European Statistics Code of Practice, respecting professional independence and objectivity to transparency, in which all users are treated equitably.

Frequency of dissemination


Accessibility and clarity
News release

Not applicable.


Not applicable.

On-line database

Detailed results are available to all users of the NSI website, section Business statistics - Short-term Business Statistics:

Micro-data access

Micro data are neither distributed nor provided to the users.


Not applicable.

Documentation on methodology

· Eurostat Methodology of short-term business statistics. Interpretation and guidelines:;

· Methodological guidance of Eurostat for the calculation of PPI in the services:

Quality documentation

Quality report of Eurostat from 2010 Principal European Economic Indicators (PEEI in focus), containing information on the calculation of index of producer prices in 30 European countries.

Quality management
Quality assurance

Quality checks and data validation is done during the whole process. Make checks on data integrity, control whether the values are within limits. After identification of errors, they are removed in cooperation with businesses.

Quality assessment

In accordance with European and international standards are complied with all instructions the concepts, definitions and methodology.

User needs


User satisfaction

No information.


The data provided fully corresponds to the scope required by the relevant Short-Term Business Statistics Regulations.

Accuracy and reliability
Overall accuracy

When calculating the SPPI is particularly important to monitor the prices of services with consistent quality. Otherwise, the indexes will be significantly diverted. To identify and eliminate disparities in prices associated with changes in the quality, type or quantity of the selected services are defined by qualitative and quantitative characteristics. When changes in the characteristics of a service or it is not available need to be replaced with a new product from the same group with approximately similar characteristics. The new service should also be representative of the enterprise. Apply various techniques for correction in case of change in quality, in which substitution of the specific service is performed by connecting a simple index of the old and the new service representative.

Sampling error

For SPPIs are not calculated sampling errors due to purposeful sampling technique used. The samples were prefabricated. Cover all businesses with annual turnover above a certain threshold (up 70%). If necessary, the samples are updated annually.

Non-sampling error

Quality control of information and validation of data takes place at the regional level - in territorial statistical offices and national level. Extreme values may be due to faulty data reported by enterprises or change in quality of service observed. These errors are usually tracked easily by comparison with data reported by the same companies from prior periods, adjusted after telephone contact.

Timeliness and punctuality

Services producer price indices are published 60 days after the reporting quarter.


All publications are made timely according publishes calendar data.

Coherence and comparability
Comparability - geographical

Compliance with EU regulations and methodologies for the compilation of SPPI ensure better comparability between the national index and is the basis for obtaining high quality aggregate European indices.

Comparability - over time

Time series published in base 2015 = 100.

Coherence - cross domain

SPPI is internally consistent. Indices of higher levels of aggregation were obtained by weighting the indices by lower levels of aggregation.

Coherence - internal

Comparisons are made with sub-indices of CPI when there is an analogue of the PPI in the services.

Cost and burden

Since the beginning of 2012 NSI started the developing the online information system for data collection, data editing and data processing of STS information. Information system "Short-term statistics" provides more efficient way of collecting data from enterprises. This new system save recourses, reduce the burden of the reporting units and the quality of short term indicators is improved.

Data revision
Data revision - policy

Not applicable.

Data revision - practice

Not applicable.

Statistical processing
Source data

Information for calculating the indices derived from the quarterly sample survey of producer prices of companies.

Frequency of data collection


Data collection

Companies completed the questionnaire online through a specially designed information system  "Short-term business statistics" or send the completed questionnaires in the Regional Statistical Offices and relevant officers bring them into the system.

Data validation

The data are compared with the cast for the previous quarter.

Data compilation

Quarterly price indices are calculated by the Laspeyres formula with fixed base, which is changed every five years and is currently 2015. After receiving information from businesses about the prices of representative services are calculated single index for each of them (the price ratio of the price for the current quarter to the average price in the base year). Indices of prices of the different levels of aggregation are obtained as a weighted average by ascending weighting system defined by the structure of the CPA.BG-2008 and NACE.BG-2008. For the formation of weights using information on sales revenue of the observed features in the base year.


Not applicable.

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