Year	constant 2010 US$
1990	2549.38610099634
1991	2597.0555447855
1992	2636.81085467661
1993	2593.93404764807
1994	2512.79615919961
1995	2706.28560185162
1996	2733.03618625621
1997	2840.26850566894
1998	2723.22465219126
1999	2702.25786341341
2000	2734.03719327821
2001	2940.92255128575
2002	2783.79605265904
2003	2829.95504245085
2004	3027.45713520999
2005	3513.58613501173
2006	3480.80360282688
2007	3519.11211193344
2008	3363.2679020522
2009	3437.75063995949
2010	3399.71251545098
2011	3619.07147339164
2012	3760.87183829604
2013	3990.06930689131
2014	3989.02872176036
2015	4119.35921501127
2016	4088.36146282943
2017	3975.23049899241