Year PPG and IMF only, % of exports of goods, services and primary income 1977 2.60594903208651 1978 5.39935606429999 1979 3.90280976815653 1980 8.38990904379149 1981 8.70696400875765 1982 2.79634387577921 1983 1.05450300386022 1984 5.18863426122199 1985 17.5155899774273 1986 5.38954989108502 1987 4.11949030751314 1988 4.24049348575697 1989 5.11035927335171 1990 3.7095539101584 1991 3.64299369649446 1992 3.61927685864282 1993 6.21032119151562 1994 7.83153009511347