Year current US$ 1961 9999.99977648258 1968 79999.9982118607 1969 159999.99642372102 1970 79999.9982118607 1971 70000.0002980232 1972 150000.005960464 1973 100000.00149011599 1974 109999.999403954 1975 70000.0002980232 1976 540000.021457672 1977 90000.0035762787 1978 219999.998807907 1979 180000.00715255702 1980 870000.004768372 1981 3359999.89509583 1982 2140000.10490417 1983 1750000 1984 150000.005960464 1985 439999.997615814 1986 159999.99642372102 1987 10149999.6185303 1988 1549999.95231628 1989 990000.009536743 1990 2599999.90463257 1991 19290000.915527303 1992 3160000.08583069 1993 7800000.19073486 1994 8680000.30517578 1995 9890000.34332275 1996 11770000.4577637 1997 7579999.92370605 1998 11729999.5422363 1999 10840000.1525879 2000 7010000.228881841 2001 3150000.09536743 2002 4269999.98092651 2003 2759999.99046326 2004 1620000.00476837 2005 9510000.22888184 2006 2849999.90463257 2007 7170000.07629395 2008 1659999.9666214 2009 8989999.77111816 2010 6349999.90463257 2011 11850000.3814697 2012 14369999.8855591 2013 16809999.4659424 2014 24000000 2015 19739999.7711182 2016 10739999.7711182 2017 8689999.5803833 2018 11020000.4577637 2019 14270000.4577637 2020 17209999.084472697 2021 26930000.3051758 2022 28540000.915527303