Year	current US$
1970	583597418.3138362
1971	581774525.1212894
1972	1138651819.264962
1973	916582488.0977024
1974	288928127.58906376
1975	202501919.49106067
1976	208368861.02403346
1977	-549247045.5824424
1978	-799154604.8418087
1979	-2010039900.9356081
1980	-3577711408.470134
1981	-2193369187.3098655
1982	-1582876567.190535
1983	344979881.6567927
1984	495069812.9014242
1985	890002717.5759223
1986	2687310818.132563
1987	2713639113.9924364
1988	3884174437.7399893
1989	3607222563.4725633
1990	3612875422.501207
1991	3934812758.4170113
1992	5983582183.186951
1993	7197266791.044776
1994	8858973957.077406
1995	11089490968.801313
1996	8856286644.951141
1997	9815741993.68516
1998	9409313180.706823
1999	10216533029.34365
2000	6783287643.76472
2001	8634316460.43308
2002	14411205478.078457
2003	17041157539.921534
2004	18069920172.81858
2005	15569789758.754856
2006	16503842056.235271
2007	19473396554.823593
2008	3480542816.796874
2009	10931049318.476555
2010	8195978148.333349
2011	-518085745.1361878
2012	312332126.13281256
2013	4163118805.725502
2014	4383786888.078416
2015	6556000719.414059
2016	5685165077.859936
2017	5223645760.000009
2018	-1822921381.333332
2019	3366035956.078426
2020	10524309167.470846
2021	10598772466.666496
2022	-9505132922.373514
2023	-5895833444.902065