Data Provider: United Nations
Data Source: Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, World Population Prospects: The 2012 Revision
Data Name: Total population, both sexes combined, as of 1 July, 2010 (thousands)
Data Year: The latest data displayed are for 2010. The data uses the medium variant (this is a central reference for trends over the longer-term future). The data was published on 13 June 2013 and was accessed on 6 August 2014
Data Periodicity: The data are updated every two years. The next release is due in the first half of 2015.
Data Definition: Total Population - Both Sexes. De facto population in a country, area or region as of 1 July of the year indicated. Figures are presented in thousands.
Data Methodology: The preparation of each new revision of the official population estimates and projections of the United Nations involves two distinct processes: (a) the incorporation of all new and relevant information regarding the past demographic dynamics of the population of each country or area of the world; and (b) the formulation of detailed assumptions about the future paths of fertility, mortality and international migration.
The future population of each country is projected starting with an estimated population for 1 July, 2010. Because population data are not necessarily available for that date, the 2010 estimate is derived from the most recent population data available for each country, obtained usually from a population census or a population register, projected to 2010 using all available data on fertility, mortality and international migration trends between the reference date of the population data available and 1 July, 2010.
Read more on the specific methodology for this data here at the World Population Prospects: The 2012 Revision
The data is reproduced with the permission of the United Nations.