Year	constant 2010 US$
1991	13154.2474201105
1992	13709.12127412
1993	14408.4942993097
1994	15015.4608901776
1995	15419.3613948287
1996	15205.0199885235
1997	15705.4637725185
1998	15572.5640037369
1999	15069.0879257184
2000	14878.4207212138
2001	14352.5270411848
2002	13002.8906346465
2003	12940.5009374908
2004	13431.7980734017
2005	14261.4664119024
2006	14998.2504880901
2007	16100.5572284606
2008	16836.6283263175
2009	16139.0486556525
2010	17147.9679625311
2011	17820.0104090685
2012	17666.5679938599
2013	17901.6474764698
2014	17603.6841857928
2015	17622.250574001
2016	17237.6414172495
2017	17275.7281976327
2018	17192.4450708233