Year current US$ 1969 319999.99284744303 1970 370000.00476837205 1971 460000.00834465 1972 449999.988079071 1973 460000.00834465 1974 400000.00596046395 1975 519999.980926514 1976 419999.986886978 1977 439999.997615814 1978 769999.980926514 1979 589999.973773956 1980 259999.990463257 1981 939999.997615814 1982 790000.021457672 1983 1000000 1984 870000.004768372 1985 1100000.02384186 1986 879999.995231628 1987 1110000.01430511 1988 1000000 1989 990000.009536743 1990 1159999.9666214 1991 1529999.97138977 1992 1759999.9904632599 1993 2329999.92370605 1994 1460000.03814697 1995 2869999.8855590797 1996 1340000.0333786 1997 2329999.92370605 1998 1789999.96185303 1999 2029999.97138977 2000 2259999.99046326 2001 1490000.0095367401 2002 2690000.05722046 2003 2700000.04768372 2004 2559999.94277954 2005 3119999.8855590797 2006 2220000.02861023 2007 2829999.92370605 2008 1870000.00476837