Definition: Average (or mid-year or mean) population

Category: Demography

The average population during a calendar year is generally calculated as the arithmetic mean of the population on 1 January of two consecutive years (it is also referred to as the mean population). However, some countries calculate it differently, using the population based on registers or estimating it on a date close to 1 July (mid-year population). http://ec.europa.eu/eurostat/ramon/statmanuals/files/KS-CC-03-005-EN.pdf