Year	constant 2010 US$
1990	5858563784.4299
1991	7953964852.05742
1992	10791833402.7586
1993	12574477512.8746
1994	14386849440.1369
1995	15654447938.1146
1996	17339092347.0204
1997	16718394131.4522
1998	18021266912.5056
1999	18605488437.6193
2000	18977703635.1695
2001	19182033107.9348
2002	20076526431.342
2003	17650889437.738
2004	22364732857.438
2005	23001643307.3023
2006	21748435279.2565
2007	24282019877.5669
2008	25768133275.2804
2009	30443580005.9117
2010	31896055335.505
2011	30647673851.6617
2012	32122053379.2145
2013	32876470745.3266
2014	34174049747.794
2015	36235242064.0457
2016	37725484853.3816
2017	38178739810.9363