Year current US$ 1969 219999.998807907 1970 140000.000596046 1971 360000.01430511504 1972 59999.9986588955 1973 319999.99284744303 1974 379999.99523162795 1975 1220000.02861023 1976 569999.992847443 1977 150000.005960464 1978 1320000.05245209 1979 1159999.9666214 1980 1750000 1981 370000.00476837205 1982 910000.026226044 1983 959999.978542328 1984 1240000.0095367401 1985 1679999.94754791 1986 1899999.97615814 1987 1059999.9427795399 1989 2980000.01907349 1990 3750000 1991 3279999.97138977 1992 4199999.80926514 1993 5739999.771118159 1994 3119999.8855590797 1995 -1389999.98569489 1997 879999.995231628 1998 289999.99165535 1999 1159999.9666214 2000 1610000.01430511 2001 709999.978542328 2002 2700000.04768372 2003 2109999.89509583 2004 3779999.97138977 2005 3099999.90463257 2006 3690000.05722046 2007 3579999.92370605 2008 5420000.07629395 2009 4059999.94277954 2010 4119999.88555908 2011 4400000.09536743 2012 1494700.7894516 2013 244738.906621933 2014 6863279.81948853 2015 2454222.91755676 2016 4707466.12548828 2017 7389929.77142334 2018 13547734.2605591 2019 10102459.9075317 2020 12018961.9064331 2021 12462570.1904297 2022 3283689.73731995