Year	current USD
1968	5087500
1969	5262500
1970	6200000
1971	8620776.95860002
1972	9121523.15123251
1973	8944886.230234481
1974	8584035.88492278
1975	10703751.4978339
1976	12613977.395424102
1977	15364583.3333333
1978	18312500
1979	27218750
1980	36927083.3333333
1981	35166666.6666667
1993	22644876.7543122
1994	24202817.586030602
2001	13945440.719243001
2002	19492116.7350544
2003	33736557.0046544
2004	75889150.4828552
2005	97752858.92983
2006	115560463.09732799
2007	124750514.77316001
2008	139098455.662914
2009	138523710.218802
2010	143063064.75874102
2011	146080695.23973
2012	168762442.453652
2013	211176025.939717
2014	188885806.75642002
2015	202106905.459739
2016	216276660.00375
2017	201814603.26535198
2018	166008530.06820402
2019	172525849.335303
2020	170175114.526378
2021	209274726.099355
2022	201053039.048216