非洲出口下降七十年代末就已经可以看到大部分非洲国家经济、社会发展速度下降的迹象越来越多;八十年代初,情况日益恶化。1982-1983年是普逼停滞的两年。1980年,石油输出国组织非洲成员国的产值占非洲总产量的51.5%,以后则不断下降,1982年和1983年的国内生产总值 Decreasing exports in Africa At the end of the 1970s, there are more and more signs that the economic and social development in most African countries is declining. In the early 1980s, the situation deteriorated. 1982-1983 was the year in which Pau was stagnant. In 1980, the output of the Organization of Petroleum Exporting Countries, member countries of Africa, accounted for 51.5% of the total output of Africa, then declining thereafter. In 1982 and 1983, the gross domestic product