Population growth in Africa 1970 - 2000
Author(s)/Corporate Author (s)United Nations. Economic Commission for Africa.;
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The preparation of population estimates and projections for all countries of the world has been an integral part of the work program of the UN family of organizations since 1963. 1/There have been three revision(i.e in 1968, 1973 and 1978)following the maiden Publication in,1963.The 9th session of the inter-agency working Group on Demographic Estimates and Projection 2/suggested that the frequency of these estimate and projection be increased from five to two years.The lead in this task was provided by the UN Population Division (New York) which used available country demographic data to estimate three variants (medium, high and, low)of the total population, percentage distribution of population by broad age-sex groups,crude birth and death rates, expectation of life at birth, gross reproduction rate and several other related demographic indicators for each of the countries by regions and sub regions of the world and for each quadrennium covered.