Year	current US$
1995	66000000
1996	135000000
1997	185000000
1998	216449996.94824198
1999	218929992.67578098
2000	85750000
2001	135059997.55859402
2002	75779998.7792969
2003	68739997.8637695
2004	61919998.1689453
2005	49459999.0844727
2006	66040000.9155273
2007	31610000.6103516
2008	26440000.5340576
2009	31069999.6948242
2010	23860000.6103516
2011	38009998.3215332
2012	38360000.6103516
2013	38830001.8310547
2014	47400001.5258789
2015	33470001.220703095
2016	42729999.5422363
2017	56049999.237060495
2018	49630001.0681152
2019	45700000.762939505
2020	47450000.762939505
2021	61029998.779296905
2022	46599998.4741211