Year	current US$
1995	15699999.8092651
1996	13899999.6185303
1997	7099999.90463257
1998	6599999.90463257
1999	5699999.80926514
2000	3900000.09536743
2001	5199999.80926514
2002	699999.988079071
2003	1500000
2004	3500000
2005	1600000.02384186
2006	21100000.3814697
2007	22600000.3814697
2008	27500000
2009	33400001.5258789
2010	43500000
2011	57299999.237060495
2012	54099998.4741211
2013	60599998.4741211
2014	56000000
2015	51000000
2016	59000000
2017	67000000
2018	81000000
2019	71000000
2020	6000000