Year	including construction (constant 2010 US$)
1991	5612.39488282344
1992	5925.08082552712
1993	6231.29066374821
1994	12771.8732169377
1995	13070.4176289384
1996	13464.3917607485
1997	13686.653650258
1998	13838.1443103691
1999	14255.9623895386
2000	14832.0119584719
2001	14941.1704366498
2002	15540.343035423
2003	16311.8655259779
2004	16763.6238687495
2005	17334.347376614
2006	17988.8309612772
2007	18951.4663417618
2008	19605.393296123
2009	19386.1958284159
2010	21168.5173243307
2011	21658.0104014269
2012	22442.5237896262
2013	23165.5306447414
2014	23875.3849303756
2015	24805.3389789774
2016	25754.7957088285
2017	27261.8157380447
2018	23706.6003482949