 However, when world coffee prices fell sharply in the 1980s, growth became erratic.Compared to an annual GDP growth rate of 6.5% from 1973 to 1980, growth slowed to an average of 2.9% a year from 1980 through 1985 and was stagnant from 1986 to 1990.The crisis peaked in 1990 when the first measures of an IMF structural adjustment program were carried out.