Year	current US$
1960	61266397.95380619
1961	91686705.86471947
1962	184936555.39881533
1963	133770525.8994427
1964	126518143.57366806
1965	159663374.0827736
1966	98983271.52668646
1967	152127564.05581322
1968	200171547.6697176
1969	266814072.9031274
1970	209002200.32348105
1971	246283120.58848628
1972	368368696.30797553
1973	468791078.1878057
1974	513839123.74703974
1975	880013269.9000769
1976	1309663443.2255628
1977	1037606840.4151752
1978	1062142007.6172317
1979	970191094.5931504
1980	1411974539.4525313
1981	964918508.96452
1982	2117334921.7197013
1983	1841461063.478859
1984	2174236212.3483963
1985	1732497697.8514419
1986	1525353824.2579343
1987	557620472.9099969
1988	502282565.87404644
1989	1591603716.3096945
1990	2084266127.9856253
1991	1337458333.3333333
1992	1563730333.8576353
1993	1771532659.047006
1994	1784340000
1995	2317824351.2974052
1996	2391477045.9081836
1997	2824202334.63035
1998	3068250000
1999	3030406976.744186
2000	4583190286.790873
2001	5413359650.945356
2002	5825416836.112241
2003	5699939036.781142
2004	6133861386.138614
2005	7205727969.348659
2006	8551847507.331379
2007	8580136163.396075
2008	9246015672.529606
2009	8706955277.28709
2010	12758430494.88304
2011	6533429251.682949
2012	-3088718795.854883
2013	-3138596091.3067474
2014	-6879922980.308159
2015	-1571013577.4452095
2016	-1999440777.9664886
2017	-2193673473.1656003
2018	-2535602939.0773683
2019	-1940034892.9697533
2020	-1334968250.1654882
2021	-3552306726.310653