Year including construction (constant 2015 US$) 1991 182541.1849133831 1992 193882.12348685286 1993 198105.74407815174 1994 208953.7836674134 1995 220254.19787522056 1996 224398.51584983352 1997 226678.0766660377 1998 223587.38570419844 1999 227949.58725176522 2000 242502.52186361197 2001 246211.35987533187 2002 247313.06557201812 2003 251793.05686112365 2004 269354.32475411985 2005 269735.7947684465 2006 259814.75063517416 2007 245747.08940455693 2008 237900.2522341131 2009 239470.19628763842 2010 240056.38294925613 2011 228757.47177723164 2012 228912.31456196014 2013 224524.7280443656 2014 224882.88913885088 2015 230580.1127294516 2016 240505.8334841416 2017 249275.313441378 2018 239998.69468480168 2019 236368.77417124953 2020 244743.38085896298 2021 245007.51837896823 2022 239845.706128721