Year	constant 2010 US$
1995	4385.26285131693
1996	4261.00139602893
1997	4262.55046371882
1998	3898.93020516306
1999	3878.77541788393
2000	3914.49593719545
2001	3946.42502398081
2002	4347.54691097042
2003	4224.11606430932
2004	4603.84751781842
2005	4714.26814757872
2006	4980.54819149631
2007	5519.14064585604
2008	5495.84874719531
2009	5676.3898474994
2010	6016.71024001112
2011	6138.13839108652
2012	6445.46630950382
2013	6674.75530782307
2014	6902.99649051882
2015	7251.47681761057
2016	7561.39733753932
2017	7793.05099172205