Year	current US$
1970	7401231764.014321
1971	4525853454.525177
1972	3733766791.3880877
1973	6140590559.8243685
1974	6609148968.331948
1975	3611146355.0361714
1976	10788563771.94345
1977	8500719279.036469
1978	8642134371.957157
1979	19389440828.08665
1980	11986396599.95696
1981	-1552073561.2289052
1982	-1930839042.4760218
1983	2446666411.3366523
1984	3931428080.5442924
1985	3409208743.024183
1986	6390291813.023507
1987	-1951491838.9553862
1988	4709082303.151798
1989	8865103505.669405
1990	7035777750.877618
1991	16472598703.594578
1992	1254852849.0920477
1993	-2438187625.6950192
1994	4168976738.5802097
1995	20368500068.240753
1996	5868208994.021316
1997	16034288292.352808
1998	27365788596.19873
1999	21175912242.85719
2000	26736736069.019665
2001	23004244415.35436
2002	13605860336.078455
2003	22851702242.352894
2004	21053046708.494263
2005	11627267685.603107
2006	22993781255.294086
2007	45334043059.21583
2008	42816633206.24999
2009	-24256661098.82811
2010	17789791950.000034
2011	47405820048.63823
2012	-21342909417.187504
2013	5685673325.882369
2014	12834646077.254856
2015	-9296608510.54687
2016	-11480799086.381351
2017	20328612770.588272
2018	33957165974.901936
2019	21531972721.568592
2020	16661214641.245182
2021	82024223244.18472
2022	120174963632.29619
2023	72648276541.17775