ESS Standard for Quality Reports Structure (ESQRS)
National Statistical Institute
|Contact organisation unit|
Population and Housing Fund Statistics Department
|Contact person function|
|Contact mail address|
2, P. Volov Str.; 1038 Sofia, Bulgaria
|Contact email address|
|Contact phone number|
+359 2 9857 543
|Contact fax number|
Registered juridical marriages and divorces terminated with a court decision are observed. Registration is done at the moment of occurrence and the number is calculated as of 31.12 of the reference year.
Source of data on marriages and divorces is the Unified System for Civil registration and Administrative Service of Population. The marriages and divorces are registered through a common USCRASP-CDS documents "Marriage notification", "Divorce notification".
Regional breakdown of the marriages and divorce 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.
The number of marriages and divorces is used for calculation of the indicators characterising the marriages and divorces in the country.
· Classification of Territorial Units for Statistical Purposes in Bulgaria (NUTS);
· Unified Classification of the Administrative-Territorial and Territorial Units in Bulgaria (UCATTU).
Indicators characterising the marriages and divorces are calculated for a calendar year. The cases are included in which at least one of the partners has a usual residence (current address) in the Republic of Bulgaria.
|Statistical concepts and definitions|
Crude marriage rate
The ratio of the number of marriages during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.
Crude divorce rate
The ratio of the number of divorces during the year to the average annual population in that year. The value is expressed per 1000 inhabitants.
The age of persons at marriage and divorce is calculated in completed years based on the date of birth of persons and the date of event - marriage/divorce.
Total number of marriages and divorces.
Regional breakdown of the marriages and divorces data is done according to the country administrative-territorial division as of 31.12 of the reference year (settlements, municipalities, districts and statistical regions).
· 1888 - 2020 total for the country;
· 2010 - 2020 - the NSI website.
· 1947 - 2020 - total for the country;
· 2010 - 2020 - the NSI website.
Source of data on marriages and divorces is the Unified System for Civil registration and Administrative Service of Population. Marriages and divorces are registered through a common USCRASP-CDS "Marriage notification" and "Divorce notification".
|Frequency of data collection|
Exhaustively for all registered during the year juridical marriages and divorces.
Computer files are received from the Unified System for Civil registration and Administrative Service of Population (administrative source).
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 is processed by the IS "Demography" according to the rules for validation and control of the demographic events.
Data on marriages and divorces are presented annually to the Eurostat, UN and UNICEF questionnaires filled in annually.
At national and regional level the main data users are ministries, agencies, national organizations and local authorities.
Data is presented to scientific institutes, universities, NGOs and others based on requests.
No user' satisfaction surveys are carried out.
Marriages by age and year of birth of the spouses, consecutive number of the marriage, previous marital status and residence.
Divorces by age of spouses, duration of the marriage, number of children, reasons for the divorce, consecutive number of the divorce and residence.
|Data completeness - rate|
|Accuracy and reliability|
|Sampling errors - indicators|
|Over-coverage - rate|
|Common units - proportion|
|Non response error|
|Unit non-response - rate|
|Item non-response - rate|
|Imputation - rate|
|Model assumption error|
|Data revision - policy|
|Data revision - practice|
|Data revision - average size|
|Timeliness and punctuality|
Data are published up to the end of April of the year following the reference year.
|Time lag - first results|
4 months after the refernce date
|Time lag - final results|
4 months after the refernce date
Data are 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|
Data is released according to the terms.
|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|
|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|
|Coherence - cross domain|
|Coherence - sub annual and annual statistics|
|Coherence - National Accounts|
|Coherence - internal|
|Accessibility and clarity|
News release "Population and demographic processes".
· Population and demographic processes;
· Statistical Reference Book;
· Statistical Yearbook;
· "Bulgaria" (brochure).
Data on marriages and divorces are available to all users of the NSI website under the heading Population - Demography, Migration and Projections - Marriages and divorces: https://www.nsi.bg/en/node/6651
Information System Infostat: https://infostat.nsi.bg/infostat/pages/module.jsf?x_2=54
|Data tables - consultations|
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.
Information service on request, according to the Rules for the dissemination of statistical products and services in NSI.
|Metadata - consultations|
|Documentation on methodology|
· Methodology on marriages and divorces: https://www.nsi.bg/sites/default/files/files/metadata/Pop_4_Metodology_marriages-divorces_en.pdf;
· Manual for functioning of the Unified System for Civil registration and Administrative Service of Population.
|Metadata completeness – rate|
|Cost and burden|
|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.