Year	current US$
2003	13199999.8092651
2004	16200000.7629395
2005	16000000
2006	15000000
2007	17299999.237060502
2008	21299999.237060502
2009	19799999.237060502
2010	21600000.3814697
2011	23399999.6185303
2012	28500000
2013	29100000.3814697
2014	30100000.3814697
2015	32400001.5258789
2016	23799999.237060502
2017	37700000.762939505
2018	41200000.762939505
2019	44000000
2020	38000000