Year	current US$
1970	2514439126.3488
1971	2340285413.25012
1972	3132799552.09758
1973	3841070571.17099
1974	5385892250.71584
1975	6720970383.89272
1976	7524123187.24225
1977	8635573527.10371
1978	9619416153.17402
1979	13175889504.5944
1980	10179903287.5823
1981	10489296195.2688
1982	9528683746.95629
1983	9120633635.34744
1984	8865728467.75522
1985	9937753532.75562
1986	11191138400.9533
1987	14207278471.0151
1988	15249759591.0463
1989	16924325016.1981
1990	22804112014.3812
1991	23248784428.3153
1992	24385713653.0793
1993	26993972608.2729
1994	21255454100.1768
1995	26647387649.8553
1996	28220526146.2759
1997	29015312577.9731
1998	42633415098.7942
1999	41428428701.2403
2000	43442152777.4305
2001	35711922389.0289
2002	43385700078.4661
2003	53451876498.3784
2004	66941473424.1902
2005	80295324867.0813
2006	86818948428.7078
2007	106146025485.358
2008	120030841981.2
2009	105362494148.463
2010	116521575983.551
2011	120328301593.943
2012	127711139789.102
2013	135002330010.177
2014	136541596219.699
2015	126812553155.546
2016	130960342063.03
2017	130577118139.605
2018	108885280453.478
2019	116456803114.297
2020	109603278519.332
2021	123744733605.747