Year	current US$
1970	55149999.6036291
1971	63499999.4523823
1972	65249999.87892803
1973	70449999.87818302
1974	68790000.1872331
1975	97140000.32283367
1976	82610000.44085085
1977	84349999.60660936
1978	108399999.61853032
1979	131000000.14901158
1980	167489998.7578393
1981	235140001.65462506
1982	207120000.24318692
1983	170950000.5245208
1984	165829999.26805496
1985	178810000.06198883
1986	211340000.5102157
1987	206699999.80926502
1988	251109999.77588683
1989	278909999.7282029
1990	262990000.36716473
1991	316150001.94311154
1992	260630002.64763844
1993	216859998.6936896
1994	174779998.95811084
1995	160620001.19686124
1996	188779998.5557794
1997	256559999.1977214
1998	232720000.32663345
1999	164250000.75995937
2000	112349999.33838844
2001	103090000.86784363
2002	119119999.82595447
2003	133410000.32424924
2004	166789999.84264374
2005	175780000.6866455
2006	199789999.72343442
2007	204379999.16076654
2008	254959999.85933286
2009	261179998.68094933
2010	234440000.295639
2011	194010000.25868416
2012	194674084.84220502
2013	188327795.74394232
2014	206594589.05458444
2015	189285294.353962
2016	184730058.37202075
2017	174077233.9701653
2018	170783794.96186975
2019	214903666.43667218
2020	252860216.319561
2021	234655698.53782645
2022	244388110.6376648