Year	current US$
1970	12855839.9083457
1971	13105098.339773
1972	6144592.82962962
1973	7776813.79996294
1974	13397489.0167364
1975	23393385.6803822
1976	21871576.1977148
1977	20824439.16
1978	25780414.779887
1979	29752666.8
1980	29376499.2499999
1981	41141999.5500001
1982	48155962.9878714
1983	63971438.0776341
1984	70701599.7871062
1985	68815058.1091054
1986	76970907.2538356
1987	69453245.3441839
1988	77016917.0912002
1989	77700467.80582
1990	83725470.7735264
1991	78681406.3984796
1992	88774886.4142538
1993	106365958.333333
1994	122363877.551021
1995	114570775.100402
1996	140410791.825613
1997	142865365.57952
1998	103363028.930872
1999	107472182.781457
2000	110836469.378891
2001	166433632.653061
2002	142008336.62584
2003	151722701.071817
2004	188674064.617905
2005	228605206.624914
2006	273913924.288665
2007	334628249.264059
2008	431967529.681019
2009	546328063.112576
2010	506599802.438894
2011	713957258.442698
2012	662630926.033563
2013	624038414.149709
2014	692000953.565156
2015	714436357.747846
2016	718451839.724061
2017	846260389.766614
2018	963808857.647164
2019	998846880.514884
2020	978321260.600567
2021	1055139594.78175