Year	current US$
2004	83997348.89282513
2005	97821599.28024957
2006	75189121.12760618
2007	79849126.30196543
2008	92044731.52836822
2009	87423239.4081347
2010	86903481.24447012
2011	83784936.84751727
2012	96259120.70877229
2013	84304693.77198319
2014	67253115.99017198
2015	66963855.98164523
2016	55248796.56319872
2017	55393427.67736966
2018	66201900.80933445