Year	current USD
1970	20339866.0651295
1971	21501256.555150397
1972	24894059.3902265
1973	31636823.7104568
1974	34625371.30512451
1975	46770377.9052134
1976	48470391.2952501
1977	55167290.7847607
1978	71436168.327011
1979	88354754.0921954
1980	99867474.4414994
1981	120247597.808126
1982	131616586.42873201
1983	129898757.69551699
1984	127243641.82288
1985	116190293.881312
1986	145411861.18635
1987	163128000.87842798
1988	154370685.71889
1989	146869357.50827602
1990	180577745.946045
1991	178198343.181842
1992	183796639.112629
1993	168175220.632639
1994	94517340.4418188
1995	113575532.707734
1996	116936303.640686
1997	118711118.801924
1998	137245911.531786
1999	144704636.51881802
2000	123034343.854287
2001	124301708.367495
2002	145626610.501185
2003	188499655.884377
2004	221107924.699736
2005	223084623.143015
2006	256927843.33225
2007	296698917.304968
2008	346586125.65737295
2009	343265153.98592895
2010	354054397.842016
2011	347477885.670932
2012	354447463.111647
2013	392840630.898917
2014	401529118.101393
2015	353815494.55348897
2016	387437830.87299
2017	408157575.13556004
2018	429892180.57235
2019	422294771.980244
2020	393299390.063774
2021	443336832.00567704
2022	416638021.640202