Year US Dollars 1960 16409999.84741 1961 14449999.80927 1963 6750000 1966 2109999.8951 1967 850000.02384 1968 980000.01907 1969 449999.98808 1970 1320000.05245 1971 1419999.95708 1972 479999.98927 1973 560000.00238 1974 129999.99523 1975 70000.0003 1979 50000.00075 1980 10420000.07629 1981 19999.99955 1982 1769999.98093 1983 1370000.00477 1984 1120000.00477 1985 1029999.97139 1986 720000.02861 1987 200000.00298 1988 529999.97139 1989 490000.00954 1990 319999.99285 1991 140000.0006 1992 159999.99642 1993 209999.99344 1994 409999.99642 1995 -4900000.09537 1996 370000.00477 1997 449999.98808 1998 670000.01669 1999 370000.00477