Year	constant 2010 US$
1995	19399594237.9298
1996	20718522200.2658
1997	22754724542.8525
1998	24460854749.5443
1999	24337283563.8101
2000	24922612819.817
2001	26229544542.7554
2002	28092820095.1479
2003	31055342649.7389
2004	34658740557.1481
2005	37629915046.9421
2006	40822882688.9965
2007	46502898148.6028
2008	47959858554.8685
2009	37024124095.298
2010	37817447722.4826
2011	40068845464.4583
2012	40034601675.4867
2013	41199802499.2011
2014	42587162413.6531
2015	45307977107.6472
2016	46348321524.1351
2017	47675663687.4842
2018	49035733836.0146