Year including construction (constant 2010 US$) 2000 12502.4326903441 2001 12290.4376478269 2002 10742.2793479606 2003 8285.02328828384 2004 9726.13618629915 2005 9587.95117697442 2006 9857.77070666558 2007 10337.593547463 2008 10814.5221318256 2009 10860.8886954485 2010 11385.6869985757 2011 11367.4642629924 2012 11552.6655905997 2013 11804.513765063 2014 12072.2418408789 2015 11972.4572461195 2016 13339.0160453153 2017 13492.4549687091 2018 13450.8939874173