countries ( Algeria, Egypt, the Libyan Arab Jamahiriya ana Nigeria), whose production increased by 15.3 per cent, while for the other sample co~ntries there was a fall of 15.5 per cent. This development shows the depth of the recession eYperienced by African countries. A lreria Eeypt Ivory C cast Kenya Libyan Arab Morocco Ni eeria Sudan Zaire Zambia Zimbabwe Total Table IV.C.3 Electricity production in Africa . (Monthly averare, Gigawatts) 1980 1981 593-5 681.2 535.8 777.3 146.0 156.0 128.0 138.0 Jamahiriya 400.0 466.7 371 .0 391.0 417.0 473.0 957.0 994.0 350.0 358.8 767.0 801.5 378.0 376.0 6 043.3 6 613.5 1982 (Estimates) 154 403 026 315 Source: Monthly Bulletin of Statistics, vol. XXXVI, No. 11 (November 1 982). 139. Pro~uction grew by 9 per cent a year on averafe between 1976 and 1980, a[ainst only 5.6 per cent in 1970-1975. This reflects a shift towards hycropower in Africa. In fact, a number of countries are increasinr eff0rts to cevelcp hydroelectric resources to replace importe<i oil. A particular case is the Ivory Coast, where the share of thermal electricity in total production declined from 82.1 per cent in 1977 to only 22 per 75 E/ECA /CM. 9/5 cent in 1980. Similar efforts are being carried out in other African countries. In the Sahel, a laree fam is being built at Manantali on one of the tributaries of the Senefal river to provide hydropower an c regulate the river flovt. In Sierra Leone, where petroleum imports account for up to 35 per cent of export revenues, a massive hydroelectric project is planned at Bumbuna, the first phase of which will cost some 480 million leones. In Kenya, tte ~se of hy~roelectricity increased by 14.5 per cent in 1981, ano 55 MW were added to the country's hydro ana geothermal capacity to bring the total to 540 MW. 