Year	constant 2011 international $
1990	11188351797.2812
1991	10215687429.0738
1992	9270075825.69654
1993	8976326446.34477
1994	9167915604.53993
1995	9752501040.15527
1996	9970478590.50016
1997	10358999584.0752
1998	10704983602.5634
1999	11033666101.6641
2000	11160118771.1605
2001	11489644774.8067
2002	12033447187.745
2003	12876346189.963
2004	14244510245.4509
2005	15277759362.2932
2006	16584960326.9503
2007	18284589774.397
2008	19911985541.8067
2009	19659382304.1871
2010	20910733774.0928
2011	24526362242.0886
2012	27547965885.7004
2013	30757005343.7441
2014	33182264566.4613
2015	33971947980.1492
2016	34368873997.2835
2017	36190997753.6537
2018	38705851805.9423