Year	current US$
1974	59999.998658895405
1975	149999.99850988397
1976	429999.995976687
1977	830000.0131130214
1978	2350000.0275671505
1979	3739999.9257177105
1980	5729999.873787165
1981	6310000.123456113
1982	7509999.897330998
1983	8280000.016093259
1984	8059999.924153088
1985	10490000.149235126
1986	12819999.946281318
1987	14399999.642744645
1988	14040000.027045619
1989	11320000.099018216
1990	13910000.037401916
1991	14280000.226572152
1992	18399999.88861383
1993	24459999.999031432
1994	35049999.49783087
1995	56529999.81492756
1996	67639999.70443544
1997	80400000.73425479
1998	82439998.88002881
1999	83350000.59567387
2000	97249999.99441215
2001	122109999.92676078
2002	178879999.19615674
2003	221060004.74840397
2004	266579997.7816641
2005	289789998.87965614
2006	362520003.98747605
2007	470309996.68501323
2008	522880001.6641617
2009	411739999.08752745
2010	380980000.0805408
2011	384230001.17763877
2012	335019997.9003517
2013	338480003.3643841
2014	323330001.6894937
2015	269119999.24853444
2016	251739999.75994226
2017	254289997.33924866
2018	263999999.63492137
2019	261350000.43176112
2020	266170000.6704776
2021	289120002.2436678
2022	286819999.4787573