Year	constant 2010 US$
2009	776760223.740775
2010	799768614.33097
2011	829115722.024255
2012	845382022.6048
2013	468917546.394202
2014	461207361.408808
2015	460442105.380362
2016	481422106.497568
2017	495952751.085886