Year	including construction (constant 2010 US$)
1991	5799.10417947518
1992	5766.84986932039
1993	5646.50572571007
1994	5534.63764058497
1995	5792.51765276497
1996	6051.32924770494
1997	6104.82612341541
1998	5959.80481799109
1999	5898.23850691918
2000	6017.06982322071
2001	5986.91735164174
2002	6207.54185869243
2003	6315.40153305305
2004	6390.62216717467
2005	6496.49327847317
2006	6707.50657978143
2007	6842.03600130914
2008	6906.92815044513
2009	6936.60947984752
2010	7062.35089033514
2011	7071.66390303504
2012	7079.6446528817
2013	7220.44184810275
2014	7399.93196758436
2015	7582.15801306586
2016	7804.95157025934
2017	7954.4790765624
2018	8095.37374016286