Year current US$ 1972 29999.999329447703 1973 29999.999329447703 1974 9999.99977648258 1975 239999.994635582 1976 270000.010728836 1977 1049999.95231628 1978 600000.023841858 1979 759999.990463257 1980 1169999.95708466 1981 699999.988079071 1982 1159999.9666214 1983 1649999.97615814 1984 1669999.95708466 1985 1700000.04768372 1986 4280000.20980835 1987 3990000.00953674 1988 7719999.79019165 1989 8869999.88555908 1990 9329999.92370605 1991 8100000.38146973 1992 8560000.4196167 1993 7059999.94277954 1994 7710000.03814697 1995 8590000.15258789 1996 8010000.22888184 1997 8510000.22888184 1998 9510000.22888184 1999 3690000.05722046 2000 2759999.99046326 2001 9510000.22888184 2002 8390000.34332275 2003 6360000.1335144 2004 6460000.03814697 2005 6210000.03814697 2006 889999.985694885 2007 419999.986886978 2008 310000.002384186 2009 400000.00596046395 2010 140000.000596046 2011 150000.005960464 2012 9999.99977648258 2017 100000.00149011599 2018 219999.998807907 2019 90000.0035762787 2020 29999.999329447703 2021 119999.997317791