Year including construction (constant 2015 US$) 1991 2915.433792954704 1992 3199.0018318592683 1993 3131.8716832987648 1994 3179.0860119711933 1995 3092.535873101495 1996 3123.7236321052683 1997 3086.173223216027 1998 2941.5061810610814 1999 2919.7648055143177 2000 3137.002311503676 2001 3228.982034969245 2002 3341.57372642411 2003 3460.59500258612 2004 3498.0302626530424 2005 3558.0174867155592 2006 3057.9233132466684 2007 2960.331112402508 2008 2868.088134289366 2009 2753.885853052375 2010 2780.950609445631 2011 2844.687526004655 2012 2962.4194212840753 2013 3002.410435159668 2014 3158.2535278372043 2015 3148.1582398942473 2016 2929.053855963256 2017 3284.4679053341083 2018 3465.961536652639 2019 3565.5306702129064 2020 3372.57453735264 2021 3424.4722493284157 2022 3567.251551518528