Year	constant 2015 US$
1975	860932950.9002597
1976	1422614048.3910165
1977	1740018162.6059246
1978	1846856931.721042
1979	2230127614.7108703
1980	2471292649.1765294
1981	2819296208.4027805
1982	3042308982.017339
1983	3290734700.8015523
1984	3787586749.541884
1985	3746614426.9673057
1986	3683341108.1132293
1987	4187972417.67857
1988	4754839526.267694
1989	5548868877.191828
1990	5919692742.610318
1991	5418691474.302049
1992	6494857931.857292
1993	6310742680.713268
1994	6827820844.977212
1995	8094220213.100786
1996	8613326782.666828
1997	8611387025.850561
1998	9112843864.667881
1999	9334402248.490574
2000	10153101859.336548
2001	10331917050.55768
2002	9970264357.30854
2003	9681248588.326498
2004	9990187419.072792
2005	10299036002.004902
2006	10536212969.56847
2007	11101286520.744028
2008	11038595134.075531
2009	10524800619.395027
2010	11190347404.815292
2011	11975421137.04712
2012	11906595183.768871
2013	12040232776.160254
2014	12797815196.387682
2015	13939933271.45827
2016	14946408881.809708
2017	16587866970.385166
2018	17785505729.217476
2019	19337215222.530037
2020	19653587502.983894
2021	23906380945.890987
2022	27162074269.725266
2023	26824037944.35757