Year current US$ 1969 9999.99977648258 1970 9999.99977648258 1971 9999.99977648258 1972 1129999.99523163 1973 1759999.9904632599 1974 3240000.00953674 1975 1730000.01907349 1976 870000.004768372 1977 1179999.94754791 1978 3509999.99046326 1979 170000.00178813902 1980 2450000.04768372 1981 9550000.19073486 1982 -370000.00476837205 1983 -109999.999403954 1984 19999.9995529652 1985 1440000.0572204601 1986 2500000 1987 2690000.05722046 1988 4369999.88555908 1989 769999.980926514 1990 3309999.94277954 1991 3619999.8855590797 1992 3160000.08583069 1993 2200000.04768372 1994 1320000.05245209 1995 1710000.03814697 1996 5159999.84741211 1997 3890000.10490417 1998 -3559999.94277954 1999 4210000.03814697 2000 6880000.11444092 2001 5530000.20980835 2002 2160000.08583069 2003 930000.007152557 2004 11119999.8855591 2005 -310000.002384186 2006 -449999.988079071 2007 3650000.09536743 2008 2089999.9141693101 2009 -200000.00298023198 2010 2269999.98092651 2011 1980000.01907349 2012 259999.990463257 2013 5469999.79019165 2014 400000.00596046395 2015 340000.00357627904 2016 50000.0007450581 2017 -19999.9995529652 2018 330000.013113022 2019 579999.983310699 2020 720000.028610229 2021 540000.021457672 2022 2500000