Year	current US$
2005	36236420.999275826
2006	32327497.512067713
2007	35254629.17061471
2008	32671710.537611015
2009	34531441.983396426
2010	39112541.77160581
2011	37620286.34209944
2012	24384127.632314153
2013	28166286.495855577
2014	38841197.438008584
2015	49572792.97211299
2016	46577991.31288899
2017	20186267.162798516
2018	12632425.204544514
2019	11328644.489389561
2020	35494917.254892886
2021	30272679.35730256