Year	current US$
1970	211000000
1971	238000000
1972	247719978.32999998
1973	269739208.22
1974	276823417.65999997
1975	966117778.4154999
1976	1355695710.451
1977	2637034422.268
1978	4405529374.2231
1979	5563872498.035
1980	6403246145.362
1981	5907729369.142
1982	5862270293.564
1983	7173076350.713
1984	7371483942.2029
1985	6449093710.8198
1986	6277412014.418
1987	7601042249.332
1988	7479027555.62
1989	6950298994.67
1990	9699913088.511002
1991	9774454435.2
1992	12849686881.67
1993	11791714150.847
1994	10391224182.095001
1995	10655741100.155418
1996	10697809478.232426
1997	11492129404.325762
1998	11922113928.762115
1999	11621826045.41898
2000	11476946812.59298
2001	12851715141.726906
2002	15829429504.150826
2003	20315498457.15176
2004	23393335357.45201
2005	22640992844.81932
2006	24459749069.323624
2007	29515131560.351593
2008	33884270767.98047
2009	31754690364.78794
2010	37780646734.52909
2011	38944864662.497795
2012	45933616316.818306
2013	47228856824.507164
2014	53122149553.08297
2015	49328023741.025475
2016	48657414274.7084
2017	55456160366.13041
2018	57983898243.88325
2019	60423937850.72781
2020	63089576499.316216
2021	72182822103.63177
2022	69294549734.72237