Year	current US$
1970	91179999.390617
1971	110609999.98077758
1972	110430001.67980796
1973	97650000.29467061
1974	115709998.68586653
1975	165520001.1823326
1976	158610000.69975856
1977	180960001.21161345
1978	305049999.5313584
1979	429260006.37374836
1980	563589996.960014
1981	456330003.69928765
1982	378019997.2297995
1983	318629996.91069126
1984	268050000.89295205
1985	311160001.7324087
1986	331620001.08510256
1987	419850002.0224599
1988	603659993.9968437
1989	600889998.0410933
1990	533990003.552288
1991	661530013.0154938
1992	673219996.4467438
1993	473980001.7382951
1994	607930000.2306701
1995	589640003.9717555
1996	630300008.1442297
1997	768690000.0199677
1998	800979997.1673646
1999	754419993.8122184
2000	1122060012.3256447
2001	1193100004.7978015
2002	1007859999.9323493
2003	1499720001.7068534
2004	2524049991.041423
2005	1935060005.679727
2006	2344920010.9653177
2007	2445640014.9203835
2008	2755490011.7106743
2009	2767790029.0675445
2010	2829210019.981488
2011	3532639983.8645015
2012	3336310014.437885
2013	3970019991.0104265
2014	4180760043.8054643
2015	4369720025.68655
2016	3750090024.501085
2017	3817090048.2498116
2018	3576070026.395841
2019	3841090013.617651
2020	3257369983.3992887
2021	2095850000.7092965
2022	1593400001.702831