Year	including construction (constant 2010 US$)
1991	8929.65807579852
1992	8646.40317029872
1993	8794.15750939103
1994	8918.95861829214
1995	9373.57266748433
1996	9124.97387853157
1997	9405.82113372918
1998	9114.31917859849
1999	8839.1031783866
2000	9211.95626395436
2001	9265.28647025052
2002	9485.66542202639
2003	9772.99667798608
2004	10041.1316946824
2005	10286.5884848718
2006	10512.0891044437
2007	10731.556444668
2008	10992.4085257264
2009	10503.1073749948
2010	11318.2428048936
2011	11329.1957482544
2012	11897.2397399221
2013	12525.1301920696
2014	12792.8008416058
2015	12761.7831387007
2016	12902.3873831407
2017	13430.3713749852
2018	13950.2516136513