Long-range world population projections: Based on the 1998 revision

Every two years the Population Division of the Department of Economic and social Affairs of the United Nations Secretariat prepares the official United Nations estimates and projections of world, regional and national population size and growth, and demographic indicators. The results from the most recent set of estimates and projections were published in World Population Prospects: The 1998 Revision, a three-volume set issued over the period 1999-2000. The estimates and projections in the 1998 Revision cover the period 1950-2005. The United Nations also prepares, as warranted, supplementary world population projections for a longer period ending in 2150. The present publication resents long-range projections for the world and its major areas, extending the results of the 1998 Revision over the period 2050-2150. The United Nations has published long-range projections on five previous occasions: 1968, 1978, 1980, 1990 and 1998.