text: 102. Manufacturing in developing Africa is dominated by agriculture-based and consumption-oriented industries. As can be seen from table IV.B.1, in 15 selected countries the share of light industry in manufacturine output varies between 49 ana 100 per cent, while heavy industry contributes more than 40 per cent of output in only four cases. Table IV.B.1 Shares of light and heavy industry in total manufacturing output in selected African countries, 1976-1977 (Percentage) Lieht Heavy Central African Republic 89 11 Egypt 59 41 Ethiopia 75 25 Ivory Coast 60 40 Kenya 62 38 Libyan Arab Jamahiriya 73 27 Madaeascar 79 21 ftlauri tius 84 16 Ni£eria 49 51 Rwanda 92 8 Somalia 87 13 Swaziland 100 To eo 96 4 Tunisia 52 48 Zimbabwe 56 44 Source: Yea~:;ccY. of Incustrial Statistics, 1979 (United Na­ tions publication, Sales No. E.81.XVII.9) 103. The share of agricultural-based and consumption-oriented industries varies with the level of industrialization, from as much as 92 per cent in BurunCi, where manufacturing represented only 6.8 per cent of GDP in 1981, to 21 per cent in Algeria. In Zimbabwe the high level of industrializaticn was due to the prominence cf chemical, petroleum and metal in~ustries, which ac­ counted fer 40 per cent of gross manufacturine output in 1979. In Al£eria, machine and electrical infustries contributed 17.5 per cent of manufacturing cutput; the contribution of petroleum industries is difficult to ascertain because of their close relationship lvith oil extraction. Aleeria has n:ace considerable efforts to develop petrcleun:-basec manufacturing, and refined capacity for eYample is new 521 ,000 barrels a day, the third lareest among A rat members of OfEC. In Nif'eria, food and tex­tiles represented 35 per cent of manufacturine in 1979, and since then sustainec efforts have been made to develop heavy industry, mainly in petrochemicals, vehicle assembly ana steel makinf. In 
analysis: The text appears to discuss the characteristics of manufacturing industries in developing African countries, highlighting the dominance of agriculture-based and consumption-oriented industries, and the varying levels of industrialization among different countries. The text also touches on the specific industries present in certain countries, such as chemical, petroleum, and metal industries in Zimbabwe, and machine and electrical industries in Algeria. This suggests that the category should be related to industry and economy.