Year including construction (constant 2010 US$) 2008 7510.88837760953 2009 7759.885715482 2010 7331.20393343465 2011 6670.3899831663 2012 6404.05070479563 2013 7792.76145930948 2014 10331.606146103 2015 13239.7628334033 2016 16320.3097884439 2017 16391.0128805569 2018 17139.8658929964