Year including construction (constant 2010 US$) 2000 2262.7770040284 2001 2264.38071002058 2002 2550.10281991636 2003 2637.41237751876 2004 2235.99830591242 2005 2327.99259206625 2006 2366.59747737597 2007 2177.01608466311 2008 2188.81794568619 2009 2241.68381541801 2010 2307.07386270441 2011 2187.54228498462 2012 2241.45639838159 2013 2251.15090107994 2014 2254.07605820905 2015 2270.20536911684 2016 2237.22701622468 2017 2387.41923934512 2018 2414.90658163891