Year	constant 2015 US$
1995	3640.3906005362865
1996	3911.4275001960414
1997	3746.8519386064145
1998	4268.580638666847
1999	4905.44675996001
2000	4621.672443948758
2001	4883.237555590133
2002	5242.213948405713
2003	5472.620933802273
2004	5792.053061991758
2005	6167.729077634754
2006	6079.16196493268
2007	6885.856675538848
2008	7018.484208451223
2009	6855.173954829789
2010	7326.080755084654
2011	7473.384543747713
2012	7780.603861832708
2013	8041.672860211334
2014	8365.853069033388
2015	8688.879796698398
2016	9382.821767551555
2017	9671.808703012459
2018	10546.031377497515
2019	10696.972475745762
2020	9820.823226051883
2021	10718.8462608287
2022	10690.901123677611