Kouaouci (Ali). - Trends and factors involved in Algerian Birth Rates between 1970 and 1986 The natural growth rate of the Algerian population has exceeded 3% per year for over 20 years, between 1966 and 1987, resulting in practically doubling the population from 12 to 23 millions. During this period, birth rates began to decline, though at a slower rate than death rates. It was only in 1985-86 that growth rates showed signs of slowing down. Based on data from 1970 (ESNP) and 1986 (ENAF), this article attempts to emphasize the impact of various factors on birth rates (structure, proportions of marriages and legitimate births) and intermediate fertility variables (breast-feeding, contraception, abortion and sterility) on the differences in t...