Year	constant 2010 US$
2008	19870906768.5282
2009	21213132708.8821
2010	22399603614.5514
2011	20455315891.1926
2012	23197218823.432
2013	23779421750.9926
2014	28128990099.966
2015	37181202409.4715
2016	34174778932.4535