Year current US$ 1970 39999.9991059303 1971 129999.995231628 1972 170000.00178813902 1973 200000.00298023198 1974 349999.99403953605 1975 469999.998807907 1976 230000.004172325 1977 259999.990463257 1978 239999.994635582 1979 439999.997615814 1980 920000.016689301 1981 569999.992847443 1982 730000.019073486 1983 439999.997615814 1984 389999.98569488496 1985 449999.988079071 1986 389999.98569488496 1987 600000.023841858 1988 629999.995231628 1989 920000.016689301 1990 529999.971389771 1991 4170000.07629395 1992 10909999.8474121 1993 9109999.65667725 1994 5880000.11444092 1995 5449999.80926514 1996 4730000.01907349 1997 1950000.04768372 1998 2089999.9141693101 1999 2210000.03814697 2000 1700000.04768372 2001 1769999.98092651 2002 1480000.01907349 2003 5389999.8664856 2004 3170000.07629395 2005 3779999.97138977 2006 4050000.1907348596 2007 6110000.1335144 2008 5570000.17166138 2009 5730000.01907349 2010 5349999.90463257 2011 10319999.6948242 2012 7090487.00332642 2013 3199092.62657166 2014 6059845.92437744 2015 5772490.9782409705 2016 5000675.67825317 2017 5209020.13778687 2018 4715864.18151855 2019 4907999.99237061 2020 5085999.96566772 2021 4942999.83978271 2022 4581999.77874756