Year	constant 2010 US$
2006	29615749913.2998
2007	31757388712.5643
2008	33575078082.017
2009	33214879367.8461
2010	32146265501.3116
2011	32961133709.141
2012	31589447464.9966
2013	32819759532.5891
2014	32679429097.6778
2015	32539836138.2495
2016	33376954349.6938
2017	33561017033.5123