Year including construction (constant 2010 US$) 2002 43500.3934499887 2003 42127.2401269779 2004 46297.9736112323 2005 52587.9310923838 2006 56786.7889239459 2007 64280.3351983 2008 66967.1107726581 2009 62238.9145293663 2010 61569.507030206 2011 58836.4238470744 2012 61742.9812504436 2013 61083.2680955706 2014 57795.4919811226 2015 59673.1273861445 2016 58200.7169658677 2017 55132.1837744243