Year current US$ 1969 219999.998807907 1970 180000.00715255702 1971 189999.99761581398 1972 250000 1973 370000.00476837205 1974 500000 1975 500000 1976 430000.00715255697 1977 610000.014305115 1978 829999.983310699 1979 479999.989271164 1980 150000.005960464 1981 870000.004768372 1982 1080000.04291534 1983 1159999.9666214 1984 680000.007152557 1985 1039999.96185303 1986 2250000 1987 2250000 1988 1360000.01430511 1989 1370000.00476837 1990 1250000 1991 1740000.0095367401 1992 899999.976158142 1993 2170000.07629395 1994 1190000.0572204601 1995 2750000 1996 829999.983310699 1997 1909999.9666214 1998 1580000.04291534 1999 2910000.08583069 2000 2619999.8855590797 2001 1580000.04291534 2002 2480000.01907349 2003 2940000.05722046 2004 3119999.8855590797 2005 3460000.03814697 2006 1629999.99523163 2007 2109999.89509583 2008 1049999.95231628