Year	current US$
1970	5384439.76799806
1971	5108951.84372467
1972	5767267.1792102
1973	9301202.08632773
1974	10160368.0130278
1975	13380454.3786286
1976	11066907.0026575
1977	16559711.6544573
1978	17684458.3696028
1979	21013078.741322
1980	23376021.0305983
1981	21562822.8319481
1982	39167577.7560505
1983	18018512.5127177
1984	11832608.849678
1985	8594121.80222057
1986	9473363.07166341
1987	10536600.5851289
1988	10780680.7240361
1989	11659461.3355494
1990	23500240.4523582
1991	26210605.3316984
1992	26353029.6034153
1993	23495377.2940558
1994	25761189.4491266
1995	34468563.1139269
1996	27413436.9442876
1997	33180750.4565226
1998	28987834.2054493
1999	25728083.906487
2000	23810017.3760235
2001	24270092.9940389
2002	24043828.331638
2003	25018260.5384084
2004	25056799.0533227
2005	25398137.7644063
2006	35672217.3871
2007	38431553.5632377
2008	41910780.7112163
2009	39135718.2661778
2010	78952365.0519773
2011	68978565.8034866
2012	67646340.5900265
2013	87404093.4678259
2014	105867150.740485
2015	85256156.1169185
2016	110533111.231642
2017	98835162.0976825
2018	72458899.3262745
2019	65548387.8130209
2020	83834886.2697793
2021	68622619.7274515