Year	current US$
1960	207500000.0279397
1961	353829997.60843813
1962	394180000.54173183
1963	377000001.0263174
1964	254190000.63277775
1965	251059993.72340685
1966	298300003.3423306
1967	181799999.8144806
1968	166390001.85579053
1969	151870001.24156472
1970	116839999.24361706
1971	171699999.7124076
1972	254640001.2075901
1973	192100003.6709008
1974	89929996.54635802
1975	48850001.3370067
1976	128000000.07636847
1977	67159998.8359957
1978	112839998.3160199
1979	531789983.6916483
1980	692410013.288259
1981	516950002.3126607
1982	528669997.96591705
1983	321280000.8505583
1984	204599999.9400228
1985	147760002.25543982
1986	321710002.411157
1987	424670001.8346311
1988	344910004.3084479
1989	219039996.19558483
1990	1247909982.0069969
1991	4471020025.139677
1992	5335399953.693153
1993	6887399987.090378
1994	6267609971.379869
1995	5997299981.173125
1996	5389389973.130077
1997	4278019986.968489
1998	5285849986.68171
1999	7362359993.636613
2000	6810520020.080722
2001	5810830008.879303
2002	7913889955.235645
2003	6374370001.50048
2004	6539399963.539091
2005	3911700021.838773
2006	4914010000.133887
2007	4566630023.078989
2008	5951310005.653651
2009	6523079992.88104
2010	5575519984.2024555
2011	8910139914.026485
2012	8278530110.245565
2013	7578389973.483978
2014	8770460039.962086
2015	6738050040.561701
2016	8206169855.915007
2017	7821679921.519004
2018	6290910006.340588
2019	5701410015.117383
2020	8255330005.420371
2021	8911139997.344465
2022	33431129925.82657