Year including construction (constant 2010 US$) 1995 70335.0301459975 1996 71468.0368159343 1997 70327.9214736754 1998 69397.9713949367 1999 68647.4837095347 2000 68223.7967014 2001 67652.0656400678 2002 67483.0720153936 2003 67075.6699975736 2004 66509.67322916 2005 65637.6347290381 2006 65282.1276356503 2007 64974.71388336 2008 68122.9137239244 2009 74897.3983316252 2010 78732.682495042 2011 80824.7406990251 2012 83490.5745414485 2013 84398.4178683597 2014 85336.5921232799 2015 83866.0052856981 2016 86848.3009239943 2017 86837.0841562882 2018 88540.3776958945