Year	current US$
1995	15000000
2003	7900000.09536743
2004	9399999.61853027
2005	19100000.3814697
2006	23600000.3814697
2007	28299999.237060502
2008	31100000.3814697
2009	30000000
2010	33200000.7629395
2011	37400001.5258789
2012	36299999.237060495
2014	40000000
2015	34000000
2016	38000000
2017	42000000
2018	48000000
2019	53000000
2020	43000000