Year	constant 2010 US$
1991	3279.33375734314
1992	4200.54625642528
1993	4113.1021834921
1994	5011.699328014
1995	4762.35997339033
1996	5016.31571296126
1997	5459.6051269155
1998	5645.32409803919
1999	5684.48597560454
2000	6000.3131179996
2001	6605.55171268663
2002	6840.88495372592
2003	6705.5406043455
2004	7525.06485290786
2005	8289.39957369801
2006	8936.05520904238
2007	9199.63029139195
2008	9983.75705344276
2009	10010.2339149121
2010	10073.2257619603
2011	11037.6938546734
2012	10676.2474681623
2013	11019.4293820349
2014	10985.8416137236
2015	11498.1860805445
2016	11491.4281698127
2017	11757.1011667187
2018	12369.5508558913