Year including construction (constant 2010 US$) 2008 46764.1794628648 2009 29925.2877371384 2010 23731.2287644596 2011 23848.7244286492 2012 25830.2012172027 2013 25973.6430515932 2014 33368.3076443378 2015 36512.3088388308 2016 29971.047677532 2017 23604.7146480954