Year	including construction (constant 2010 US$)
1991	8770.40156593746
1992	8525.27746989883
1993	8465.18190920499
1994	8402.31639012884
1995	8562.92687645007
1996	8736.78883200403
1997	9073.8960353398
1998	9241.02799767662
1999	9486.71854837476
2000	9907.93615302848
2001	10068.829907782
2002	10399.4986972828
2003	10788.9055281662
2004	11249.4012104376
2005	11578.071993865
2006	12104.7213093555
2007	12732.5403306262
2008	13182.4097102806
2009	13296.8822346202
2010	14070.6682143242
2011	14600.9137540626
2012	14889.809549689
2013	15306.4004796887
2014	15598.6729526657
2015	15777.9358604673
2016	16419.0924148195
2017	16905.0609685634
2018	17329.7337603646