Year	constant 2010 US$
2007	2581346714.70612
2008	2892691638.46454
2009	3193610537.26453
2010	3561037560.79931
2011	3740389285.08409
2012	3983865111.61316
2013	4345427372.67132
2014	4647689666.46596
2015	4622287019.06726
2016	4318016487.01813
2017	3901246911.94262
2018	3968969661.67256