Year	including construction (constant 2010 US$)
1991	6606.04820582573
1992	7017.21602652104
1993	7320.16892351041
1994	7606.70726477733
1995	7737.27408214389
1996	8503.67807923841
1997	8898.48630495685
1998	9197.93818533422
1999	9319.55934737618
2000	9703.06327071788
2001	10740.7010169188
2002	10292.7360546126
2003	11397.7115964417
2004	11605.5252998567
2005	11532.3608174937
2006	12032.2061464566
2007	12702.6441133037
2008	13068.2649970374
2009	14279.4410072686
2010	14895.0706183699
2011	15236.3225105728
2012	15254.6349776374
2013	15140.8677760772
2014	15043.1528948369
2015	14833.8450269786
2016	14993.3499725321
2017	15384.1770638499
2018	15791.0457229236