|Births||2020||84.77||83.76||Ths. #, NSA||Annual|
|Deaths||2020||131.08||124.95||Ths. #, NSA||Annual|
|Death Rate||2016||11||11.2||# per Ths. pop.||Annual|
|Birth Rate||2014||8.5||8.6||# per Ths. pop.||Annual|
For Greece, estimates of population by sex, for the national and subnational areas (NUTS 1, 2 and 3), annual from 1931.
The source wrote:
The population of a country changes from year to year according to the following equation:
P[t+1]= P[t] + B[t] - D[t] + I[t] - E[t]
Given that the events of the Natural Movement of Population come from reliable administrative sources, the calculation process of the population goes back to the calculation process of migration flows.
For the purposes of this methodological note, the estimated populations on 1.1.1991 (10,272,691 people) and on 1.1.2011 (11,123,392 people) are considered as constants. The specific populations have been estimated from the results of the Censuses of the respective years, taking into account the results of the Post Enumeration Surveys of these Censuses 1. The results of 2001 Population Censuswere not taken into account for two reasons: a) these results do not meet the necessary quality guarantees given that a Post Enumeration Survey was not used for that Census and b) backward estimates of 2011 Census data revealed some quality issues of the 2001 Census data.
Data from 1981 to 1990 refers to the "de facto population", which is the total of all persons present at the time the data was gathered. Data from 1991 onwards refers to "de jure population", a count of all usual residents in the region at the time.
Estimations for the years 1991 to 2001 were based on the 1991 Census and estimations from 2002 [to present] are based on 2011 Census results.