Year	constant 2010 US$
2006	2334987632.70773
2007	2568699953.78188
2008	2812422796.88948
2009	2964032686.98051
2010	3235894039.7351
2011	3333955378.41757
2012	3076045890.43143
2013	3072325446.54929
2014	3336878717.79859
2015	3463242338.26852
2016	3685275716.97032
2017	3884720419.44047
2018	4213762407.94461