Year	current US$
1970	80000.00007450578
1971	239999.99277293676
1972	9999.99977648258
1973	440000.00506639504
1974	9279999.539256098
1975	35999999.93108216
1976	44680001.16944314
1977	57149998.47486613
1978	51829999.295994595
1979	71820000.0673533
1980	75589999.34792507
1981	65340001.36703254
1982	73330000.04664062
1983	56270001.180469975
1984	58319999.35209757
1985	49899999.9798834
1986	45869999.87438321
1987	51520000.275224485
1988	68439999.99761578
1989	66280000.217258915
1990	60930000.126361795
1991	77500001.06170776
1992	72210001.56179065
1993	80689998.25790527
1994	80990000.3224611
1995	58840000.29042363
1996	34990000.44353305
1997	30820000.417530533
1998	26620000.13515354
1999	23189999.707043167
2000	119809996.21748921
2001	104690002.22533944
2002	53490000.337362304
2003	49959999.74012375
2004	50280000.746250175
2005	16790000.17419458
2006	16139999.777078623
2007	35140000.116080016
2008	40859999.26924702
2009	23800000.25779009
2010	24559999.492019404
2011	41680000.010877825
2012	32896400.047466148
2013	21254404.72364424
2014	4997499.94277954
2015	21152535.945177086
2016	41483410.29882436
2017	54335390.44857029
2018	50679781.39780463
2019	38776878.87847423
2020	38006170.32777518
2021	36378710.12091637
2022	21714599.952101707