Year current US$ 1960 34470000.1310557 1961 38730001.328513 1962 40120000.8094311 1963 53380000.2522767 1964 60240000.169724196 1965 56229999.7303635 1966 59840000.199154 1967 54139999.3468076 1968 28380000.835284602 1969 17780000.1092255 1970 23610000.886023 1971 19040000.325068798 1972 14880000.0417978 1973 23000000.1098961 1974 20110000.3048778 1975 33699999.868869804 1976 23060000.1774728 1977 25360000.1689047 1978 26710000.5466491 1979 74659999.6685982 1980 47319998.8864362 1981 61360000.6513298 1982 31889999.508857697 1983 25630000.190809403 1984 33799999.700859204 1985 34170000.843703695 1986 35299999.3227422 1987 27990000.6093085 1988 52680000.5920231 1989 41260000.7038563 1990 57579999.8175353 1991 103730000.88706599 1992 51849999.2862344 1993 44879999.9654293 1994 62669999.7037649 1995 36040000.2077222 1996 38790000.1797825 1997 52429999.2509186 1998 39209999.6488541 1999 38900000.5237758 2000 49929999.8320639 2001 48820000.236854 2002 66070000.2275407 2003 223959996.057674 2004 407590006.876737 2005 1398710020.4527402 2006 304540000.557899 2007 129899998.38173401 2008 809379978.2395359 2009 248149999.141693 2010 230599995.471537 2011 277950003.34456605 2012 328219996.43742996 2013 891609995.521605 2014 908420000.910759 2015 1006400006.65747 2016 1348420006.81162 2017 1248569979.23926 2018 1170790008.4927702 2019 1337740001.91689 2020 1026179981.47011 2021 687910000.085831 2022 333069998.2941152