Year	constant 2010 US$
1990	1796.93338443952
1991	1601.59062416544
1992	949.031291670401
1993	886.030151341586
1994	956.468846570432
1995	1043.54119486628
1996	1121.87950406801
1997	1172.13568009922
1998	1267.57405942099
1999	1317.73979050316
2000	1404.3200896038
2001	1548.05961278644
2002	1761.84123383193
2003	2019.90053213589
2004	2244.1393981339
2005	2571.97712834302
2006	2934.02488180947
2007	3366.66493916206
2008	3629.90909142676
2009	3137.34609782582
2010	3218.37270660563
2011	3370.55110336209
2012	3603.59584827024
2013	3705.35739647445
2014	3819.2177873036
2015	3923.7165022155
2016	3917.3796757227
2017	4198.79474877013
2018	4406.70643393273