Year current US$ 1966 9999.99977648258 1967 9999.99977648258 1968 29999.999329447703 1969 19999.9995529652 1970 29999.999329447703 1971 39999.9991059303 1972 119999.997317791 1973 79999.9982118607 1974 209999.993443489 1975 129999.995231628 1976 689999.997615814 1977 829999.983310699 1978 750000 1979 2640000.10490417 1980 3640000.10490417 1981 3630000.1144409203 1982 4610000.1335144 1983 5940000.05722046 1984 3599999.90463257 1985 4389999.8664856 1986 5289999.96185303 1987 9060000.4196167 1988 9010000.22888184 1989 13819999.6948242 1990 11689999.5803833 1991 8750000 1992 10359999.6566772 1993 10239999.7711182 1994 9760000.22888184 1995 10750000 1996 11670000.076293899 1997 8390000.34332275 1998 9100000.38146973 1999 11090000.1525879 2000 8699999.80926514 2001 10149999.6185303 2002 9920000.07629395 2003 15500000 2004 19049999.237060502 2005 19090000.1525879 2006 21510000.2288818 2007 22100000.3814697 2008 26809999.4659424 2009 40040000.9155273 2010 55959999.0844727 2011 61779998.779296905 2012 67540000.9155273 2013 51939998.626709 2014 55250000 2015 89980003.3569336 2016 40360000.6103516 2017 50529998.779296905 2018 42939998.626709 2019 42750000 2020 54150001.5258789 2021 89779998.7792969 2022 61799999.237060495