Year current US$ 1965 29999.999329447703 1966 469999.998807907 1967 759999.990463257 1968 1580000.04291534 1969 2000000 1970 4000000 1971 4000000 1972 3000000 1973 2000000 1974 3000000 1975 2000000 1976 4000000 1977 4000000 1978 5000000 1979 9000000 1980 16000000 1981 25000000 1982 25000000 1983 25000000 1984 32000000 1985 19000000 1986 19000000 1987 19000000 1988 21000000 1989 18000000 1990 14000000 1991 10000000 1992 12000000 1993 5000000 1994 5000000 1995 11000000 1996 3000000 1997 2000000 1998 1990000.0095367401 1999 1490000.0095367401 2000 1299999.95231628 2001 1669999.95708466 2002 5989999.771118159 2003 2660000.08583069 2004 3970000.02861023 2005 2720000.02861023 2006 3230000.01907349 2007 19450000.762939498 2008 13649999.6185303 2009 24649999.6185303 2010 57229999.5422363 2011 98040000.9155273 2012 123550003.05175799 2013 169830001.831055 2014 38250000 2015 26520000.4577637 2016 46810001.373291 2017 73199996.9482422 2018 85889999.3896484 2019 54849998.4741211 2020 77239997.8637695 2021 83349998.4741211 2022 71900001.5258789