Year	constant 2010 US$
1991	3313.5624517061
1992	3126.86093551095
1993	3108.1880006903
1994	3217.53307744639
1995	3452.31953414719
1996	3678.8023321921
1997	3244.90270999549
1998	3948.76609532442
1999	3744.81057405631
2000	4307.49256234279
2001	4467.34600116131
2002	4384.1035365191
2003	4854.52682128051
2004	4893.59946333129
2005	4831.16344262249
2006	5199.56821839201
2007	5474.1020793644
2008	5411.66780729578
2009	5244.86805343602
2010	5234.87394120205
2011	5012.03598419926
2012	5145.75551951794
2013	5215.33211620016
2014	5318.91087158171
2015	5432.30347761738
2016	5649.14652202157
2017	5715.45345056202
2018	5803.43256591654