Year	constant 2010 US$
2000	36044298341.0931
2001	37449372355.1551
2002	40139043103.6418
2003	41632198904.0902
2004	49633455958.9326
2005	53352370952.2569
2006	67314817504.132
2007	79421829550.1802
2008	93450549190.6148
2009	104624021240.908
2010	125122306346.154
2011	141857635543.447
2012	148506870584.197
2013	155056431405.283
2014	161225944072.686
2015	167122799519.85
2016	170684705988.971
2017	173381268748.888
2018	175863478348.24