Year	current US$
1970	180320037.8
1971	176840278.7556
1972	337134833.83900005
1973	438694963.652
1974	475419528.98899996
1975	473330181.12000006
1976	526952407.602
1977	1071561356.0780001
1978	1388102077.515
1979	1747324865.3869998
1980	2637492678.512
1981	3201446739.098
1982	4398269514.631
1983	4881741283.296
1984	4517093619.0859995
1985	4533853833.580001
1986	5368573399.424999
1987	6193722005.1310005
1988	7707802854.766001
1989	8089369250.057001
1990	8654402913.255
1991	9962146465.641998
1992	10166173544.8499
1993	10617677682.960001
1994	12725846067.276003
1995	14879962874.274853
1996	15987654406.603033
1997	20286624632.524178
1998	14769141504.25019
1999	16247021751.272388
2000	18737386766.781506
2001	20823552928.63141
2002	25323639173.136143
2003	29924043784.01852
2004	34683608118.5984
2005	37634573202.72877
2006	41817151165.56682
2007	49526692178.14479
2008	58117477393.87526
2009	58821830241.58215
2010	68112892736.98729
2011	76450575736.65094
2012	79912575090.49174
2013	86861481984.21213
2014	104042468972.28452
2015	106537099728.8427
2016	102580863791.89948
2017	108537717564.78226
2018	109900491087.82938
2019	108345845367.1511
2020	106560178190.08398
2021	114160982618.60123
2022	123780389431.5565