Year	current USD
1977	5390626.34765659
1978	8259877.0649692705
1979	10183559.4762639
1980	13135761.887029901
1981	12379584.2969822
1982	11074579.5804093
1983	11735930.3473656
1984	9116913.39949027
1985	6646662.94783438
1986	7341260.28979926
1987	8349582.27531029
1988	8720150.2548967
1989	8731526.53011424
1990	14223211.6630336
1991	16006837.3096925
1992	20976434.1639756
1993	23724347.7143224
1994	25804044.1590627
1995	28769619.722697802
1996	26486561.922151
1997	25662115.1225271
1998	25731330.5404213
1999	25853264.107583597
2000	24471060.530301202
2001	19665055.20851
2002	18338440.521028
2003	31927690.9349284
2004	42695547.3095458
2005	59471673.9027539
2006	58520575.052979
2007	61877516.7237491
2008	66657830.199413694
2009	75911617.9884277
2010	102032174.965375
2011	106629408.921201
2012	90639795.27330789
2013	86040376.7558151
2014	81355664.003534
2015	73527455.74242419
2016	80527779.90285839
2017	87762823.1282349
2018	95863380.3230956
2019	86532285.97134751
2020	76795299.97571051
2021	83224944.1699939
2022	74301520.5780315