Year current US$ 1973 59999.9986588955 1974 39999.9991059303 1975 59999.9986588955 1976 70000.0002980232 1979 910000.026226044 1980 259999.990463257 1981 750000 1982 600000.023841858 1983 509999.99046325695 1984 430000.00715255697 1985 540000.021457672 1986 649999.976158142 1987 790000.021457672 1988 1200000.04768372 1989 889999.985694885 1990 1679999.94754791 1991 2440000.05722046 1992 2750000 1993 2819999.9332428 1994 2400000.09536743 1995 3349999.90463257 1996 2880000.1144409203 1997 3009999.99046326 1998 2730000.01907349 1999 4489999.771118159 2000 3109999.89509583 2001 1860000.01430511 2002 2000000 2003 1940000.0572204601 2004 3240000.00953674 2005 4920000.07629395 2006 5630000.11444092 2007 2900000.09536743 2008 9920000.07629395 2009 3660000.08583069 2010 3480000.01907349 2011 3970000.02861023 2012 3519999.98092651 2013 3779999.97138977 2014 2799999.95231628 2015 2150000.09536743 2016 2450000.04768372 2017 2140000.10490417 2018 2430000.0667572 2019 2079999.9237060498 2020 2220000.02861023 2021 2190000.05722046 2022 409999.99642372096