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Estimates and projections of the number of households by country, 1975-2000 based on the 1973 assessment of population estimates and projections.
New York, UN, 1981 May 15. 76 p. (ESA/P/WP.73)The household estimates and projections presented in this report cover the period 1975-2000 and use the population estimates as assessed in 1978. The purpose of these household estimates is to respond to the need for demographic projections in terms of individual traits such as sex, age, labor force status, occupation, and urban-rural residential status and in terms of group characteristics such as the family and household composition. Families and households form the primary unit where individuals are socialized and interact with each other, and, consequently, can be considered as the molecular units of a population. The objectives of this report are to apply existing projections methods to available data, discuss the major problems encountered in their application, especially with regard to the estimation and projection of headship rates, and present the results. The detailed results are presented in tables and provide the total number of households, their annual rates of growth, and average household size by area, region, and country for each 5-year period between 1975 and 2000 according to medium, high, low, and constant variants. During the next 2 decades, it is expected that the number of households in the world will increase at a faster rate than the world's population. The total number of households of the world, which is estimated to have been about 909 million in 1975, is projected to increase by another 775 million (85%), reaching 1684 million by the turn of the century (medium variant). The range of the low and high variants is 1622 and 1754 million, respectively. The average household size for the world population is projected to decline from 4.4 persons in 1975 to 3.7 persons in the year 2000, reflecting the expected future fertility declines and the assumed increases in headship rates. The relatively rapid increases of households projected for the less developed regions is largely due to their high rates of population growth and to expected changes in headship rates. Among the 8 major areas of the world, the rate of increase in the number of households will be the highest in Africa and Latin America. The lowest average annual growth is expected in Europe.