Year current US$ 1970 9999.99977648258 1971 79999.9982118607 1972 310000.002384186 1973 370000.00476837205 1974 259999.990463257 1975 490000.009536743 1976 610000.014305115 1977 720000.028610229 1978 680000.007152557 1979 1149999.97615814 1980 1740000.0095367401 1981 9380000.11444092 1982 2630000.1144409203 1983 1850000.02384186 1984 2660000.08583069 1985 1850000.02384186 1986 4880000.11444092 1987 3630000.1144409203 1988 3440000.05722046 1989 3019999.98092651 1990 5159999.84741211 1991 4019999.98092651 1992 4449999.80926514 1993 4630000.11444092 1994 3910000.08583069 1995 4329999.92370605 1996 4010000.2288818406 1997 3940000.05722046 1998 3150000.09536743 1999 -289999.99165535 2000 -2019999.9809265102 2001 2710000.03814697 2002 3279999.97138977 2003 -9999.99977648258 2004 200000.00298023198 2005 189999.99761581398 2006 -150000.005960464 2007 -319999.99284744303 2008 -340000.00357627904 2009 -319999.99284744303 2010 -270000.010728836 2011 109999.999403954 2012 170000.00178813902 2013 150000.005960464 2014 200000.00298023198 2015 79999.9982118607 2016 109999.999403954 2017 140000.000596046 2018 129999.995231628 2019 150000.005960464 2020 140000.000596046 2021 119999.997317791 2022 159999.99642372102