Year including construction (constant 2010 US$) 1991 61523.5608476443 1992 63014.855669724 1993 62535.5495249759 1994 65645.2303000681 1995 61521.4690261586 1996 62308.068368996 1997 63856.4212332712 1998 64211.3687989273 1999 65328.159401946 2000 67605.9754299413 2001 68196.9166338394 2002 68511.3196196952 2003 69773.5542004244 2004 71852.7070623029 2005 72930.8329192412 2006 74942.8709004548 2007 76193.4276340904 2008 75668.1522113719 2009 71880.6880278695 2010 77949.7347383962 2011 80483.3649441437 2012 80832.3917975412 2013 81817.7002734986 2014 83494.8517991683 2015 85335.3202192743 2016 87280.0003295765 2017 88558.8953107957 2018 90386.2654052804