text: adeyuate rains, especially ir. the north. Barrir,q abr:crmal ccndi­ tior.s, there is likely to be scme improvement ir prctiuction in the Central African a·nd Great Lakes subreqior.s ir. 1982. Of the countries of the Eastern ar.d southern _.ll,_frican sul·reqior., Ker.ya, Zaml;ia and Zir.!babwe had a qcod crop year ir l98J, and t.he food supply prospects remain favourable fer the subreqior. as a whole, except for Botswana and Lesotho, which experience<..: scatt<.!red and unreliable rains in 1982. Notes 1/ Accordir.q to FAO, uaricultural proeucticr: in l.frica ir.- creased by 3.3G per cent in 1S8l, aqainst 3.G per cer!t in 1980. ECA estimates are Lased on value adt;ed cal .::ula ted at ccnsta nt factor ccst usinq separate price (not sectoral) ceflatc-rs, \'Jhile the FAO index refers tc qross output, includinq cutput C·f crcps, veqetables, rubber, meat and sc or., but excludir1q cutput of hides and skins and fishery, huntir,q ar.d forestry prcuucts. Thus the differences between the ECA a n.1 FAU estimates arist~ frcr:: the dif­ ferer.t methcdolcqies, ccveraqe aoo deflatcrs used. -2/ A further test \/as c<.rried cut usi r,q the volume of cereal impc'rts versus total ( r~ct per capit<.~) i cce prcductior. (beth measured aqain by averaqe ar:r:ual qrc·\,·th rutes), but the coefficient cf determinatior: cnce ac;air! orcve<i t~uite sic;nificart. 59 E/ECA /CM. 9/5 B. l<iANUFACTURING 1. Structure of manufacturing industry 100. Manufacturing industry in developing Africa represents only a small part of total output, and a negligible portion of total world output. In 1981, for a sample of 26 countries contributing more than 80 per cent of the total output of developing Africa, the share of manufact~ring in GDP was only 9.6 per cent, or $23.3 billion out of total output of $243.5 billion. Since the early 
analysis: The text discusses the agricultural sector in Africa, specifically the effects of rainfall on crop production and the food supply. It also mentions the manufacturing industry in developing Africa, but in a brief and general manner. This suggests that the text is primarily focused on economic development and agriculture.