Year current US$ 1963 5989999.771118159 1964 2309999.94277954 1965 490000.009536743 1966 -769999.980926514 1968 -250000 1969 70000.0002980232 1970 230000.004172325 1971 -1330000.04291534 1972 -1500000 1973 3160000.08583069 1974 4340000.15258789 1975 5639999.8664856 1976 4059999.94277954 1977 5960000.03814697 1978 7050000.19073486 1979 37799999.237060495 1980 27879999.1607666 1981 14810000.4196167 1982 11649999.6185303 1983 14800000.1907349 1984 19489999.7711182 1985 23700000.762939498 1986 21889999.3896484 1987 11550000.1907349 1988 31770000.4577637 1989 16530000.6866455 1990 13859999.6566772 1991 23889999.3896484 1992 16579999.923706101 1993 9649999.61853027 1994 7340000.15258789 1995 6190000.05722046 1996 8100000.38146973 1997 8760000.22888184 1998 12229999.5422363 1999 5309999.94277954 2000 4099999.90463257 2001 3559999.94277954 2002 12180000.3051758 2003 3539999.96185303 2004 76750000 2005 6179999.82833862 2006 18770000.4577637 2007 129999.995231628 2008 8760000.22888184 2009 35639999.3896484 2010 8989999.77111816 2011 17420000.0762939 2012 14100000.3814697 2013 32830001.831054702 2014 -39520000.4577637 2015 18530000.6866455 2016 15489999.7711182 2017 29780000.6866455 2018 30030000.6866455 2019 30159999.8474121 2020 22000000 2021 22450000.762939498 2022 10869999.8855591