Year	current US$
1996	33500000
1997	15500000
1998	3420338.63825527
1999	3817229.84349167
2000	25957718.7965305
2001	26957168.6723578
2002	14492716.0014684
2003	12586214.1572144
2004	29436635.3450777
2005	35452285.32738
2006	49577452.7719573
2007	102605421.739247
2008	161810951.998948
2009	101249928.567394
2010	90350000
2011	104540000
2012	107090000
2013	161950000
2014	169060000
2015	114850000
2016	126530000
2017	163040000
2018	195080000
2019	204570000
2020	189120000
2021	157230000
2022	188040000
2023	174060000