Year	constant 2015 US$
1970	30983559099.985535
1971	32373959602.53983
1972	34226765135.442566
1973	36647604654.419914
1974	37779399892.42734
1975	38848674079.048035
1976	39924578714.70311
1977	42123844071.37107
1978	45830553554.938255
1979	47879251355.271065
1980	48908533149.74919
1981	49558373740.27537
1982	47429390477.66404
1983	47666356912.30506
1984	48254586252.01483
1985	50093982212.12147
1986	51186630506.80897
1987	51729625005.96795
1988	52772737988.1406
1989	55213977011.12497
1990	56501590020.46599
1991	57638386942.58435
1992	59313695931.78357
1993	60638953603.9906
1994	63250639325.77146
1995	65494436091.81756
1996	69452036396.8031
1997	74204118940.30116
1998	80045077434.65857
1999	86914878356.38942
2000	95535703646.00153
2001	101273062483.70973
2002	105748973954.57652
2003	108758437799.85269
2004	112297351210.91908
2005	119389013658.79797
2006	126515199709.78157
2007	134927984675.32416
2008	135409942651.34407
2009	129137166178.00696
2010	127646685393.6925
2011	127159320761.35657
2012	125698903338.32649
2013	125198446453.88118
2014	128647675718.9726
2015	132794808563.49915
2016	139052327015.5644
2017	143293567633.96088
2018	149461632718.73236
2019	154722575597.30936
2020	147527043881.14883
2021	159062127933.91833
2022	171376020136.5945
2023	176047506554.20468