Year	constant 2010 US$
2006	1010778552.67402
2007	1061590382.71974
2008	1368020805.34835
2009	1552554817.27907
2010	1723443708.60927
2011	1863793520.50024
2012	1609734370.27168
2013	1606355578.50394
2014	1553074631.39718
2015	1740597574.50706
2016	1867562172.85657
2017	1969705647.06611
2018	2262490949.09421