Year	constant 2011 international $
2001	28900920527.3726
2002	29926535327.8375
2003	30872036042.639
2004	31170896210.1222
2005	32633781419.2695
2006	34396804644.563
2007	35485525227.3492
2008	35936933803.6354
2009	37974769315.405
2010	40341500447.1602
2011	40572320335.7933
2012	47019096628.0151
2013	48275208148.8329
2014	50306201687.9804
2015	51746238932.3572
2016	51361917920.7983
2017	52699268448.2414
2018	54010748412.5235