Year	constant 2015 US$
1970	40276844417.8041
1971	42853109092.73191
1972	46559977288.34709
1973	50841901085.01917
1974	51936448169.06312
1975	53222477946.43105
1976	58463279724.43335
1977	63703219110.53259
1978	69222322222.25748
1979	70894998161.27771
1980	74634926044.75423
1981	74503663052.48509
1982	75232837082.34634
1983	74631518037.13313
1984	76429709556.35075
1985	77150201306.39746
1986	85116347076.67001
1987	84070443797.03427
1988	88991696564.0867
1989	88980075580.36737
1990	90288289578.27042
1991	94523417855.90904
1992	99914107996.91814
1993	106899484621.97508
1994	120196964789.61108
1995	125453632143.44083
1996	125954173854.13235
1997	131045210062.03336
1998	130196608809.44775
1999	121515045327.94476
2000	121219822166.57281
2001	123864587660.77754
2002	126450048076.75279
2003	129638790421.36256
2004	136930269841.19742
2005	144290560086.46182
2006	153351009109.50122
2007	166797299351.31848
2008	173651501102.25174
2009	181201098053.23093
2010	189840283847.62796
2011	199021356993.4308
2012	211121325626.436
2013	225013089253.3423
2014	237020909246.281
2015	247102690753.018
2016	253474652569.16498
2017	257491302759.90967
2018	262393515344.77234
2019	272425882062.49463
2020	257858465293.63446
2021	277591929695.8783