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Source Information

Bulgaria


Last updated on IDB: July 2015
Base Population
Item Base year Data source Data collection years Notes Ref. No.
Base Population 1993 census 1992 Census population adjusted under age 1 to be consistent with fertility and mortality and moved to midyear. 1, 2

Latest Data Used in the Estimates and Projections
Item Reference years Data source Data collection years Notes Ref. No.
Population 2011 census 2011 Same as base population. 2
Fertility 2013 vital registration 2013 Registered births by age of mother and total births by sex. 3
Mortality 2013 vital registration 2013 Registered deaths by age and sex adjusted for underreporting, adjusted only at age zero in line with IGME estimates. 4
Migration 2014 official estimate 2014 Official migration estimates. 5

References
Ref. No. Citations
1 National Statistical Institute. 1993. Statisticheski Godishnik 1993. Sofia.
2 United Nations Statistics Division. 2014. Demographic Yearbook. Population Censuses' Datasets (1995 -- Present).
3 Republic of Bulgaria. National Statistical Institute. Live births by districts, municipalities and sex. http://www.nsi.bg/en/content/6623/live-births-districts-municipalities-and-sex.
4 Republic of Bulgaria. National Statistical Institute. Deaths by districts, age, place of residence and sex. http://www.nsi.bg/en/content/6633/deaths-districts-age-place-residence-and-sex.
5 Republic of Bulgaria. National Statistical Institute. INTERNATIONAL MIGRATION IN 2014 BY AGE AND CITIZENSHIP OF MIGRANTS (Table). http://www.nsi.bg/en/content/13040/international-migration-age-and-citizenship-migrants.

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Source: U.S. Census Bureau | International Programs | International Data Base | Version: 12.03.21
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