Year	constant 2010 US$
1991	2495.91824415221
1992	2483.53068308979
1993	2619.8282048444
1994	2680.41911985856
1995	2775.26605623854
1996	3031.22834183873
1997	3247.29328388951
1998	3430.76813056113
1999	3487.21600501142
2000	3746.6279060772
2001	3778.05310660316
2002	3827.78614505459
2003	3939.56851337579
2004	4140.63063374974
2005	4497.37882930164
2006	4668.59039818457
2007	4718.08278682199
2008	4651.55604199323
2009	4982.74230121141
2010	5369.8529347249
2011	6719.55992384354
2012	6547.29942196258
2013	6299.42394653161
2014	6865.14919803851
2015	7073.14751057961
2016	7507.02686397914
2017	7756.51528662589