Year	constant 2010 US$
2007	254666390798.898
2008	268325538635.145
2009	270096871860.393
2010	283703778926.621
2011	294920007353.217
2012	302822763170.074
2013	307894129601.034
2014	316952369357.599
2015	327420305843.258
2016	338911291044.979
2017	341581974775.197