Year	including construction (constant 2010 US$)
1991	14267.2315178366
1992	15812.7497594975
1993	18470.5884704376
1994	20289.7269278999
1995	22130.7280231776
1996	24401.3437251022
1997	24570.7758680829
1998	24581.0027479099
1999	24217.7882071958
2000	24535.4845706966
2001	24463.815254644
2002	24198.7390155928
2003	23854.9136986191
2004	24333.2830449265
2005	24498.6347578478
2006	25291.2927190163
2007	26112.5602651738
2008	26489.9380381112
2009	25393.9086358136
2010	27167.7704826464
2011	27332.9512889926
2012	26794.1653460813
2013	26363.0333872005
2014	25174.6952349191
2015	25809.6708105017
2016	24619.7477705896
2017	25511.1293582961
2018	24826.4389950747