Paragraphs 195 to 202 present projectlong of the working age poPulation for the period between 1980 anat 2025. The dlscusEion ln paraqraphs 203 to 237 examines the "ff."t" of fertitlty, rbrtality and nlgratlon on the supply of labour' (a! crowth of the worklnq age population 195. Ttre t{orld|s l'orklng age poPulationr defineit as persons aged 15 to 64' is eetlmateal to have been 2.6 birllon ln 1980 (see table 33) ' about 59 Per cent of the total populatton. Thus the worklng age population ln 1980 wes larger than the ehtlre PoPulation of the rrorld in 1950 (2.5 billton). Most of the growth ln the working age poPulation si6ce 1950 (L.l billion) has occurred in the less developeil regions. nhile the working age population increased by 39 per cent.in the |rpre tleveloped regions (frorrr 53i to zes ,nf fftonl durlng this 30-year period' thi6 age group increa=etl by 95 pet cent ln the less devetoped regions (from 955 to I.855 nillion). conseguently. the share of the norning age poPulation accounted for by the less developed regions lncreased froo 64 per cent in 1950 to 72 per cent in 1980. 196. Bet\reen I98O and the turn of the century, the sorld'5 storking age poPulatlon wlll grou by another 1.25 billlon (nearly 50 per cent) ' Approxirnately 90 per cent of thls grorrth (about 1.15 billlon) uill take place ln the less developed regions' Anrong the major regions, the $orking aqe PoPulation vtill lncrease bY 85 per cent ln Africa, 66 per cent in Latin America, 64 per cent in South Asla, 44 per cent in East Asla and 80 per cent tn the least ateveloped countriee' f,/ rne correspondlng increase for the nore developed reglons wlll be only 13 per cent' l9?.Projectionscolheyear2025indicatefurtherrapidincreasesinther'orkinq age population of the lesa devel'opecl reglons, accompanied by relatively smell
**Analysis**
The text primarily discusses the growth and composition of the working-age population, highlighting the significant increases in the less developed regions. The focus is on the demographic changes and their implications for the labor market, rather than specific economic sectors or industries. The text also touches on the disparities between developed and less developed regions.

**Category**
Employment, Economic development