Year	constant 2010 US$
1995	16724391164.7818
1996	18012423460.0647
1997	18154836771.1426
1998	18138638981.5121
1999	17847688136.8491
2000	16673789761.8895
2001	16758725493.4955
2002	17143168460.3911
2003	16472083720.5728
2004	17551966376.9837
2005	18122637913.7211
2006	19729379742.3272
2007	21796495904.5441
2008	23488183946.9402
2009	23328734722.8485
2010	25922722149.3403
2011	27390762152.6828
2012	27018524738.2469
2013	29390436240.6571
2014	30929889814.159
2015	31860162555.5293
2016	33112736366.0139
2017	35110506271.9667
2018	36466855203.106