Year	constant 2010 US$
1992	2090.15643320188
1993	1664.71465439206
1994	1277.3470546705
1995	1150.44109897498
1996	1222.95866196644
1997	1388.98051319927
1998	1571.67659787692
1999	1657.9891198538
2000	1855.36387647788
2001	2069.00962338027
2002	2273.18224520733
2003	2549.13949437402
2004	2935.15397399044
2005	3382.70290926105
2006	3904.82316765751
2007	4347.36871494573
2008	5125.55479974071
2009	4884.96797798198
2010	5505.32848719373
2011	6302.53130727058
2012	6614.81506360446
2013	6617.97772119053
2014	6774.75924915925
2015	6459.63272639952
2016	6089.98794976668
2017	6295.31666579088