Year	BoP, current US$
1977	177491271.70179462
1978	208153246.945597
1979	254243051.7004297
1980	329222578.41498137
1981	241315230.14681602
1982	268341387.84598532
1983	254976804.0563981
1984	238828255.21060842
1985	289824205.0216552
1986	357809597.06721306
1987	374023169.6929199
1988	351286435.8561477
1989	351849885.78467983
1990	432499926.170496
1991	334263348.5942188
1992	363887357.7756235
1993	313233479.3552564
1994	267108691.9120125