Year	constant 2010 US$
1990	48858580510.4748
1991	44461308264.1979
1992	39348257815.1519
1993	36672576281.8318
1994	32638592892.9875
1995	37257496634.937
1996	38002646567.575
1997	38458678325.8876
1998	33882095604.5646
1999	34898558473.0054
2000	44635256287.6074
2001	43831821674.2482
2002	51107904072.2402
2003	54940996878
2004	61094388528.1172
2005	61338766082.1143
2006	65509802175.698
2007	71471194173.8385
2008	72114434920.7923
2009	63532817166.2222
2010	65502334498.3204
2011	65764343835.5419
2012	68921032340.0004
2013	70781900213.542
2014	69012352707.216
2015	66182846246.7822
2016	63204618166.2467
2017	67249713727.5739