Year	current USD
1996	67706683.5603421
1997	44007707.1290944
1998	41084456.9800406
1999	25882678.3632664
2000	18824291.4324173
2001	23829967.8729583
2002	33975807.0392771
2003	42647402.884906694
2004	70419742.78037201
2005	214071430.14762703
2006	404172025.858922
2007	931750564.205712
2008	1090160250.60538
2009	603655214.936935
2010	454178215.15535796
2011	468779626.836253
2012	491982529.35853297
2013	441878926.976772
2014	415643210.857482
2015	299514176.284605
2016	315194446.32233596
2017	321136644.607665
2018	333912381.840905
2019	310614128.505502
2020	287864077.669903
2021	300489434.431324
2022	360344170.69704396