Year current US$ 1961 39999.9991059303 1963 90000.0035762787 1964 59999.9986588955 1965 340000.00357627904 1966 370000.00476837205 1967 310000.002384186 1968 19999.9995529652 1969 250000 1970 159999.99642372102 1971 109999.999403954 1972 109999.999403954 1973 449999.988079071 1974 540000.021457672 1975 569999.992847443 1976 79999.9982118607 1977 340000.00357627904 1978 1279999.97138977 1979 1399999.97615814 1980 560000.002384186 1981 289999.99165535 1982 649999.976158142 1983 889999.985694885 1984 1070000.05245209 1985 1399999.97615814 1986 1039999.96185303 1987 1710000.03814697 1988 1210000.03814697 1989 899999.976158142 1990 1000000 1991 1960000.03814697 1992 2259999.99046326 1993 1019999.98092651 1994 2910000.08583069 1995 1309999.9427795399 1996 4329999.92370605 1997 1840000.0333786 1998 2279999.97138977 1999 4260000.228881841 2000 3980000.01907349 2001 4380000.11444092 2002 4409999.84741211 2003 34709999.0844727 2004 4849999.90463257 2005 7300000.19073486 2006 7650000.09536743 2007 10399999.6185303 2008 8550000.19073486 2009 10489999.7711182 2010 6469999.79019165 2011 13439999.5803833 2012 16440000.534057599 2013 24149999.6185303 2014 19360000.6103516 2015 21290000.915527303 2016 22420000.0762939 2017 22850000.3814697 2018 25889999.3896484 2019 29340000.1525879 2020 31579999.9237061 2021 35400001.5258789 2022 36000000