Year current US$ 1963 9999.99977648258 1964 19999.9995529652 1965 70000.0002980232 1966 140000.000596046 1967 189999.99761581398 1968 239999.994635582 1969 300000.011920929 1970 529999.971389771 1971 2299999.95231628 1972 2250000 1973 1399999.97615814 1974 3269999.98092651 1975 5380000.11444092 1976 5500000 1977 3059999.94277954 1978 2339999.91416931 1979 4849999.90463257 1980 1490000.0095367401 1981 6050000.19073486 1982 2690000.05722046 1983 1820000.05245209 1984 1220000.02861023 1985 730000.019073486 1986 500000 1987 2690000.05722046 1988 2089999.9141693101 1989 1139999.98569489 1990 1139999.98569489 1991 1379999.99523163 1992 1610000.01430511 1993 3150000.09536743 1994 2210000.03814697 1995 10239999.7711182 1996 8270000.45776367 1997 4150000.09536743 1998 3759999.99046326 1999 3559999.94277954 2000 3319999.9332428 2001 1750000 2002 2400000.09536743 2003 5590000.15258789 2004 6360000.1335144 2005 10840000.1525879 2006 5960000.03814697 2007 6989999.771118159 2008 6969999.79019165 2009 7039999.96185303 2010 6369999.88555908 2011 7739999.771118159 2012 5579999.92370605 2013 4800000.19073486 2014 5429999.82833862 2015 6630000.11444092 2016 7980000.01907349 2017 14520000.4577637 2018 18090000.1525879 2019 16989999.7711182 2020 21040000.915527303 2021 17850000.3814697 2022 17850000.3814697