Year US Dollars 1960 70000.0003 1961 3769999.98093 1962 5530000.20981 1963 289999.99166 1964 529999.97139 1965 600000.02384 1966 589999.97377 1967 500000 1968 219999.99881 1969 209999.99344 1970 79999.99821 1971 310000.00238 1972 119999.99732 1973 730000.01907 1974 779999.97139 1975 639999.98569 1976 469999.99881 1977 280000.00119 1978 280000.00119 1979 239999.99464 1980 70000.0003 1981 409999.99642 1982 649999.97616 1983 1019999.98093 1984 1899999.97616 1985 3299999.95232 1986 4239999.77112 1987 4650000.09537 1988 5730000.01907 1989 5900000.09537 1990 5159999.84741 1991 4440000.05722 1992 6119999.88556 1993 5050000.19073 1994 4860000.13351 1995 3490000.00954