Year including construction (constant 2010 US$) 2000 5890.35516044672 2001 5945.58447069255 2002 6062.69173759923 2003 6591.22052175463 2004 6553.44395211873 2005 6770.05790303878 2006 7338.81813760241 2007 7105.75734089931 2008 7395.58398110031 2009 7806.0181460519 2010 8492.23390688969 2011 9479.38397175586 2012 10236.1487159567 2013 10704.2850600832 2014 11154.9333532387 2015 11476.9399865895 2016 12462.2161576711 2017 13523.0726435211 2018 14408.6857593971