Year	constant 2015 US$
1965	4302429978.053148
1966	4508296456.274738
1967	3445232355.8531704
1968	1989574952.2892697
1969	1906817515.081956
1970	2288684655.34699
1971	2353374545.4583297
1972	3136142619.3341403
1973	3120220560.061112
1974	3666142621.101494
1975	4589301181.822905
1976	4159997307.403078
1977	5148074634.654291
1978	7563305127.641455
1979	7092673183.044998
1980	6213534453.957613
1981	7087309371.256317
1982	7656071253.31866
1983	8541687148.155997
1984	8613049861.996428
1985	9410220905.16042
1986	10083481840.17521
1987	9304046345.82504
1988	9050422086.213398
1989	8144579649.473621
1990	7471455237.41117
1991	7303043817.19306
1992	6496502347.690792
1993	5081826567.602566
1994	5194923584.653772
1995	5494983191.792056
1996	5781575192.165949
1997	6135247280.67685
1998	6392513608.709982
1999	6632361128.7286625
2000	6983300746.577522
2001	7425433786.772256
2002	7589269020.796939
2003	8248938628.197189
2004	9040158255.264133
2005	9674405857.746248
2006	10009402631.883915
2007	10773237262.887375
2008	11484346574.907196
2009	12040802784.271173
2010	12603724099.08974
2011	13401239254.571033
2012	13810725159.451601
2013	14548038312.924349
2014	15464039973.817284
2015	15963495102.185488
2016	16670468178.968615
2017	17463800906.242825
2018	18353493250.478203
2019	18931148318.7766
2020	18833373007.997955
2021	19401934597.10727
2022	20234788887.89223
2023	21145479412.369453