Year	constant 2015 US$
1979	2973044999.0130453
1980	2928690783.7154827
1981	3071122129.1735196
1982	2451566145.5040617
1983	2208432625.3890343
1984	2167427605.5025105
1985	2104652811.445777
1986	2398476864.095878
1987	2626946337.0744667
1988	2596894091.684613
1989	2715926323.996818
1990	2738737066.011368
1991	2823281632.71991
1992	2535658119.0424805
1993	2772093246.715802
1994	3055236077.046162
1995	3313169420.5379324
1996	3520095416.9942527
1997	3629922517.7837253
1998	3923639016.918079
1999	3893937349.398941
2000	4215615884.871528
2001	4737582415.423837
2002	4447601010.01134
2003	4093918350.0858593
2004	4394209637.532562
2005	5615738723.064539
2006	7398576610.88176
2007	7561185219.341918
2008	8533065160.643499
2009	9383719083.353205
2010	10962856275.37381
2011	11185555110.145947
2012	12602729513.24136
2013	12906409742.476091
2014	15467446342.355661
2015	15490333708.965652
2016	14906862761.862654
2017	16100669221.414185
2018	16037710236.28924
2019	16759615840.42375
2020	17144236973.423843
2021	19000167559.45017
2022	18783169814.848198
2023	18797067234.40541