Year	current US$
1977	10379999.948665492
1980	31019999.902695417
1981	27979999.88123774
1982	26599999.98286367
1983	29190000.038594015
1984	27989999.983459707
1985	29929999.852553003
1986	23599999.99962747
1987	25409999.961033456
1988	29570000.08225441
1989	37359999.98264014
1990	48960000.35479666
1991	45160000.177100316
1992	38289999.64334072
1993	41079999.97399748
1994	58919999.98874964
1995	77379999.51280652
1996	81979999.71359965
1997	84579999.9702722
1998	90050000.07338822
1999	71859999.73677097
2000	57820000.4324317
2001	98690000.18946825
2002	117469999.30404131
2003	118339999.67761339
2004	91079999.53627585
2005	90969999.96155503
2006	97569999.87363811
2007	110020000.33855438
2008	150609998.88181686
2009	146409999.63879585
2010	151070000.14185902
2011	143009998.94738197
2012	150133106.7085266
2013	155272021.41284937
2014	150927374.8397827
2015	142907064.19944763
2016	120481577.93283461
2017	100216659.322381
2018	100151680.23109436
2019	139624908.83469582
2020	150352790.59410092
2021	158980435.43100357
2022	182541111.3500595