Year BoP, current US$ 1977 13708907.1020421 1978 15585679.8771085 1979 10995590.073171 1980 21753169.5907768 1981 20766826.7586906 1982 20997774.5198919 1983 20705072.7540832 1984 19576311.954353 1985 19102398.1772319 1986 27464157.8511335 1987 30385654.0017278 1988 34356425.0293722 1989 33083778.7510297 1990 39781126.6061122 1991 36869001.3439147 1992 35724567.1123393 1993 37395477.9572112 1994 28277858.8200849