Year	current US$
2005	12802149276.723047
2006	18601954009.3774
2007	24482259032.801098
2008	31177583990.39074
2009	24557117277.680443
2010	29022018514.069965
2011	31979493588.094643
2012	29643916777.71957
2013	28820025418.856754
2014	29642186201.358738
2015	29452615659.47907
2016	22844780213.615917
2017	28337369623.23332
2018	34491411433.4395
2019	38074663904.3073