Year current US$ 1963 50000.0007450581 1964 219999.998807907 1965 170000.00178813902 1966 910000.026226044 1967 1659999.9666214 1968 310000.002384186 1969 349999.99403953605 1970 250000 1971 1370000.00476837 1972 239999.994635582 1973 289999.99165535 1974 100000.00149011599 1975 209999.993443489 1976 209999.993443489 1977 529999.971389771 1978 1019999.98092651 1979 1519999.98092651 1980 2779999.97138977 1981 2150000.09536743 1982 4320000.17166138 1983 6420000.07629395 1984 6559999.94277954 1985 5409999.84741211 1986 5300000.19073486 1987 6000000 1988 8520000.45776367 1989 7559999.94277954 1990 6780000.20980835 1991 7440000.05722046 1992 11010000.2288818 1993 13239999.7711182 1994 12489999.7711182 1995 8350000.38146973 1996 6659999.84741211 1997 7949999.80926514 1998 13470000.2670288 1999 3759999.99046326 2000 2339999.91416931 2001 1659999.9666214 2002 2599999.90463257 2003 850000.023841858 2004 519999.980926514 2005 63729999.5422363 2006 3759999.99046326 2007 5780000.20980835 2008 -270000.010728836 2009 25829999.9237061 2010 9380000.11444092 2011 100370002.746582 2012 9449999.80926514 2013 750000 2014 649999.976158142 2015 490000.009536743 2016 430000.00715255697 2017 540000.021457672 2018 610000.014305115 2019 649999.976158142 2020 579999.983310699 2021 699999.988079071 2022 479999.989271164