Year	current US$
1970	1840000.0222027297
1971	1299999.980255961
1972	1990000.009536742
1973	2140000.0043213363
1974	4109999.9882280845
1975	2649999.9687075606
1976	5430000.126361841
1977	3950000.0346451993
1978	5550000.077113507
1979	7139999.985694888
1980	8089999.895542858
1981	7630000.0473856935
1982	13159999.765455725
1983	12630000.080913313
1984	10859999.809414145
1985	14199999.993667014
1986	14849999.941885468
1987	25180000.282824032
1988	32329999.69832597
1989	26149999.724701043
1990	37650000.25741756
1991	89120000.36612155
1992	68730000.43816864
1993	98190000.06653367
1994	93000000.69476661
1995	103560000.63568361
1996	103910000.11004506
1997	86390000.7195771
1998	96150001.0099262
1999	165980001.22234222
2000	118749999.56414096
2001	106429999.96989964
2002	141250000.53271657
2003	186189999.65488905
2004	185700000.8579344
2005	164079999.5623529
2006	221310006.35772935
2007	157500001.86637044
2008	191139999.6671826
2009	163070000.61124566
2010	173409997.24157152
2011	215320000.5590916
2012	213850002.8010458
2013	276239999.063313
2014	280600003.1661243
2015	291310003.1819193
2016	290379996.9293177
2017	274770001.0165573
2018	248480000.67472458
2019	271569999.11181617
2020	297659996.5952336
2021	293269994.3967164
2022	264379995.96819282