text: that their currencies were pegged to a strong dollar in 1981 and 1982. 30. Exchange rate movements for some of the more important African currencies are indicdted in table VI.C.l. In 1982 no African _currency appreciated against the dollar, and only the Seychelles rupee did so, to a slight degree, in 1981. The weighted average of African currencies (see table VI.C.l) fell against the dollar by about 10, 21 and 20 per cent in 1980, 1981 and 1982 respectively. The cumulative depreciation against the dollar over the three-year period was about 43 per cent. 31. During the period under review the dollar strengthened against the SDR, so that the fall in the weighted average of African currencies against the SDR was 7.2, 13.8 and 12.0 per cent respectively. The cumulative depreciation against the SDR was about 30 per cent over the three-year period. 121 Table VI .C .1 Exchange rates (National currency per US dollar) Algeria Angola Botswana Burundi Egypt Ethiopia. Franc zone countries Gambia Ghana Guinea Kenya Lesotho Liberia Libyan Arab Jamahiriya Malawi Mali Mauritania Mauritius Morocco Hozambigue Nigeria Rwanda Seychelles Sierra Leone somalia Sudan Swaziland Tunisia Uganda United Republic of Tanzania Zaire Zambia Zimbabwe Weighted average £1 Unit Dinar Kwanza Pula Franc Pound Birr CFA franc Dalasi Cedi Syli Shilling Maloti Dollar Dinar Kwacha Franc Ouguiya Rupee Dirham Metical Naira Franc Rupee Leone Shilling Pound Lilangeni Dinar Shilling Shilling Zaire Kwacha Dollar 1980 3.97 27.62 o. 74 90.00 0. 70 2.07 225.80 1.68 2. 75 19.36 7.5 7 o. 75 1.00 0.30 0.83 451.60 46.03 7.84 4.33 28.91 0.54 92.84 6.52 1.06 6.30 0.50 0.75 0.42 7. 57 8.18 2.99 0.80 .0.63 24.04 1981 4. 38 30.21 0.88 90.00 o. 70 2.07 287.40 2.10 2. 75 21.37 10.29 o. 96 1.00 0.30 0.91 5 74.80 48.94 10.33 5.33 30.05 0.64 92.84 6.23 1.17 6.30 o. 90 0.96 0.52 
analysis: The text appears to be discussing the exchange rates of various African currencies in relation to the US dollar and the SDR (Special Drawing Rights) over a three-year period (1980-1982). The data provided suggests a decline in the value of African currencies against the dollar and the SDR during this period. The text does not provide any information about economic development, natural resources, agriculture, industry, transport, communication, health, education, employment, humanitarian aid, culture, or science and technology. Therefore, it is likely that the text is related to international trade and economic issues.