Year current US$ 1960 1789999.96185303 1961 2700000.04768372 1962 4329999.92370605 1963 3990000.00953674 1964 289999.99165535 1965 1480000.01907349 1966 1899999.97615814 1967 5099999.90463257 1968 4760000.228881841 1969 6099999.90463257 1970 5429999.82833862 1971 4389999.8664856 1972 2990000.00953674 1973 3660000.08583069 1974 4349999.90463257 1975 5050000.19073486 1976 6849999.90463257 1977 4260000.228881841 1978 7239999.771118159 1979 15479999.5422363 1980 9930000.30517578 1981 7949999.80926514 1982 4829999.92370605 1983 3910000.08583069 1984 7059999.94277954 1985 5440000.05722046 1986 4400000.09536743 1987 3210000.03814697 1988 4880000.11444092 1989 3569999.9332428 1990 5280000.20980835 1991 5250000 1992 5179999.82833862 1993 5960000.03814697 1994 7510000.228881841 1995 3819999.9332428 1996 6599999.90463257 1997 1700000.04768372 1998 1809999.9427795399 1999 37029998.779296905 2000 1700000.04768372 2001 6869999.88555908 2002 11670000.076293899 2003 670000.016689301 2004 419999.986886978 2005 1990000.0095367401 2006 349999.99403953605 2007 59999.9986588955 2008 90000.0035762787 2009 50000.0007450581 2010 79999.9982118607 2011 519999.980926514 2012 230000.004172325 2013 2599999.90463257 2014 1600000.02384186 2015 1750000 2016 569999.992847443 2017 899999.976158142 2018 1029999.97138977 2019 2160000.08583069 2020 2000000 2021 1580000.04291534 2022 289999.99165535