The 2010 Revision constitutes the twenty second round of the global population estimates and projections produced by the Population Division since 1951.
The 2010 Revision breaks new ground in the production of population projections. It is the first standard Revision to include projections up to 2100 for all countries and areas of the world. Previous Revisions presented country projections only for the period ending in 2050. In order to extend the projection period to 2100, a new method for the projection of fertility had to be developed.
The method used in the 2010 Revision is based on the advances made in projecting fertility since the 2000 Revision, advances that have been combined with a probabilistic approach to yield the future paths of fertility used in producing the medium variant of the 2010 Revision. The standard output of the 2010 Revision does not, however, include fully probabilistic projections. The standard output of the 2010 Revision includes only the usual projection variants and scenarios included in other Revisions of World Population Prospects
The full results of the 2010 Revision are presented in two volumes. The first volume provides comprehensive tables displaying key demographic indicators for each development group, major area, region and country for selected periods or dates within 1950-2100. The second volume contains demographic profiles presenting time series and plots covering the period from 1950 to 2100 for selected indicators for each country with at least 100,000 inhabitants in 2010 as well as for development groups, major areas and regions. This volume provides, for each country and area, a brief description of the data sources and demographic methods used to make the base - year estimates for each country or area. Key findings of the 2010 Revision are also included in each volume together with the projections assumptions, and a wall chart provides summary indicators for the most recent period.