Year	constant 2015 US$
1970	11167299987.796146
1971	11436110113.49569
1972	12131509266.200583
1973	12622379748.600904
1974	13664018549.835236
1975	14331660593.803925
1976	14220630066.77242
1977	14799156191.704863
1978	15488712146.30658
1979	15284182778.63978
1980	15424431388.273838
1981	15707850555.274658
1982	15795506197.80678
1983	16226478146.411184
1984	16521585104.342808
1985	16807926219.076328
1986	16921877996.478304
1987	17142874875.782335
1988	17142874875.782335
1989	18049855820.35947
1990	18241003504.245174
1991	18059916665.21381
1992	18267314981.084034
1993	18560613678.760075
1994	19098456388.70969
1995	19434317892.57133
1996	19777144650.359997
1997	20438807510.59117
1998	21047073345.072247
1999	21374422148.224327
2000	21618192785.787746
2001	22467907041.61508
2002	22817699053.330765
2003	24027265468.365894
2004	25160217577.01493
2005	26731183598.040405
2006	27480294286.859943
2007	28778082602.555824
2008	29884723234.366
2009	29742330933.24499
2010	30340535922.87173
2011	30830398716.853493
2012	30745272407.12006
2013	31331869802.47214
2014	32282961697.379658
2015	32939207447.828587
2016	33548246657.019817
2017	34815079760.80475
2018	35972022524.799934
2019	38049876741.2263
2020	40675633815.0944
2021	43893405394.096825
2022	44788004672.32692