Bulgaria - Population





Bulgaria: Population

Mnemonic POP.IBGR
Unit #
Annual 0.71 %
Data 2018 7,000,039
2017 7,050,034

Series Information

Source National Statistics Institute (NSI) - Republic of Bulgaria
Release Vital Statistics (Sub-National)
Frequency Annual
Start Date 12/31/2000
End Date 12/31/2018

Bulgaria: Demographics

Reference Last Previous Units Frequency
Population 2018 7,000,039 7,050,034 # Annual
Net Migration 2017 -24,001 # Annual

Release Information

Population

The population and its structures are defined as of 31.12. of the respective year. The number and structures of  the population at the end of each year are calculated on the basis of data for the previous year and data on the natural and mechanical movement of the population in the current year. In the census years recalculations of the population are made as of the end of the respective year of census. The definition 'resident population' is used for the calculation of population and its structures. It includes people who live permanently (have a current address) in the country as of 31.12. of the respective year and have not been absent from it for a period more than 1 year.
The demographic prognoses (perspective projections of the population) are formal calculations made in condition that certain suggestions about fertility, mortality and migration future development have been adopted. They give an idea of  the possible future development of the population in the prognostic period. Different scenarios are used for the population projections depending on the expected socio-economic development of the country.

For further information, please check here.

Live Births

Survey objects in the fertility are the cases of births and the born children as a result. They are registered at the moment of occurrence of the birth and their number is established as of 31.12. of the respective year. The number of births includes the live born and stillborn children. The fertility indicators are calculated on the basis of the live born children.

Deaths

Survey object in the mortality are the dead persons. They are registered at the moment of occurrence of the death and their number is established as of 31.12. of the respective year. The mortality indicators are calculated on the basis of the death persons. The number of dead children under 1 year of age is used to calculate infant mortality indicators.

For more information, please check here.

Population

Data on the number and structures of the population include people living permanently in the country. In territorial aspect data are presented according to the administrative-territorial division of the country as of 31.12. of the respective year by 'present address'.
The last population projection elaborated by NSI is for the population development up to 2060. The population of the country as of 31.12.2011 is an opening point of the projection. The prognosticated population is distributed by sex and five-year intervals of age for each year of the period. Data are published by five-year periods.

Live Births

Survey objects in the fertility are the cases of births and born children as a result. They are registered at the moment of occurrence of the birth and the respective periodical aggregates for a given period of time are created. A calendar year is covered by the demographic statistics.

The term ‘birth’ means completion of pregnancy that result in child bearing. It includes live born and stillborn children, excluding the abortions.

The indicator ‘births’ includes the number of live born and stillborn children and not the different cases of births with one, two or more children.

The definitions of "live" has changed over the years.

Definitions up to and including 2008:

A live born child is the one, who weighs 1 000 or more grams and has shown signs of life at the completion of pregnancy no matter its duration. The signs of life are breathing, functioning of the heart, pulsation of the umbilical cord or voluntary movement of the muscles. At the presence of one of these signs it is considered that the child is born alive.

If the foetus weighs less than 1 000 grams it is accepted as live born if it has been alive for at least 6 days.  A stillborn child is the one who has not shown signs of life and its length is 35 or more centimeters at the completion of pregnancy or the pregnancy has continued at least 28 weeks. The number of stillborn children does not include the abortions, which are premature interruptions of pregnancy in unnatural or natural way.

In accordance with the same methodology an abortion is defined as interruption of the pregnancy when the foetus has not shown signs of life and its length is below 35 centimeters or the pregnancy has continued less than 28 weeks. It is accepted that abortions are also the cases when the foetus weighs less than 1 000 grams and has not lived at least 6 days from the birth.

Definitions starting in 2009:

A live born child is the one, who has shown signs of life at the completion of pregnancy no matter its duration.

A foetus with a weight below 600 grams and/or duration of pregnancy less than 22 weeks is accepted as live born if it has been alive for at least 3 days. A stillborn child is the one who has not shown signs of life and its weight is 600 and more grams at the completion of pregnancy and/or the pregnancy has continued at least 22 weeks.

In accordance with the new Decree an abortion is defined as interruption of the pregnancy when the foetus has not shown signs of life and its weight is below 600 grams and/or the pregnancy has continued less than 22 weeks. It is accepted that abortions are also the cases when the foetus has not lived at least 3 days from the birth.

Data source for the births and born children is the form of National civil registration system
certificate of birth.

Deaths

Survey object in the mortality are the dead persons. Deaths are registered at their occurrence and they form the respective periodical aggregate for a fixed time. This specific time for the current demographic statistics is a calendar year.

The event death is an intermission of the life functions of the constitution without any possibility for their recuperation.

The age of dead persons is calculated in completed years on the basis of the person’s birth date and the date of the event death.

The number of dead persons/ deaths is the actual quantitative amount of this aggregation. There are included all dead persons with present address in Bulgaria.
The aggregate of dead persons is used for the calculation of mortality indicators. The number of infant deaths under 1 year of age is used for characterization of the infant mortality.

Data on deaths are distributed in regional aspect (settlements, municipalities, districts and statistical regions) in accordance with the administrative-territorial division of the country as of 31.12. of the respective year by persons’ present address. That address corresponds to the persons’ officially declared residence.

Data sourse for dead persons is the form of National civil registration system certificate of death.

Revisions are completed during census years. Revisions are based on the census results and natural and migration growth for the reference year, received from the current demographic statistics.

The information above was taken directly from the source, National Statistical Institute - Bulgaria.