Year	current US$
1970	8259999.96438623
1971	8710000.177845351
1972	5120000.138878814
1973	3430000.0201910757
1974	5050000.05103648
1975	5980000.099167226
1976	6089999.910444019
1977	5979999.873787165
1978	7169999.957084652
1979	12849999.852478504
1980	16259999.873116605
1981	17569999.81589616
1982	19580000.163987286
1983	19530000.25637451
1984	19739999.860525142
1985	17550000.105053183
1986	19099999.902769927
1987	24900000.49769882
1988	25049999.56488609
1989	34860000.07390971
1990	50719999.9690056
1991	44190001.24931336
1992	51680000.90122223
1993	62630002.05904242
1994	59179999.470710665
1995	46549999.41587448
1996	48400000.5722046
1997	38769999.146461435
1998	39220000.028610155
1999	35569999.51601029
2000	44970001.16109851
2001	52940000.53405758
2002	46699999.09400944
2003	54869999.58753592
2004	55970001.041889206
2005	58449999.45163728
2006	67309998.92950056
2007	81950000.76293945
2008	99039998.05450441
2009	101890001.89304358
2010	116109999.68647954
2011	105990000.48637396
2012	106915257.21549982
2013	110840605.73577881
2014	118124473.69098668
2015	119278329.1729282
2016	136945010.97127798
2017	135676768.42212668
2018	145674699.306488
2019	141599000.81157696
2020	131503998.39878081
2021	138476999.75967416
2022	137352002.3822784