Year including construction (constant 2010 US$) 1991 62961.0914495391 1992 63997.757257892 1993 62752.1623033608 1994 65430.1056436255 1995 63028.7543969612 1996 62894.1900677731 1997 65648.0142353589 1998 66179.9612676592 1999 66528.585541831 2000 69581.2945139495 2001 70515.7873145947 2002 70444.183755622 2003 73092.4039902583 2004 76510.5991696931 2005 79469.0628268847 2006 82446.8756211956 2007 82927.2427768527 2008 82472.1990213305 2009 72731.6449900835 2010 83818.3698015902 2011 88029.2509967426 2012 87224.9603786023 2013 86960.9804828955 2014 89358.7408778362 2015 91473.1078004929 2016 95069.2388947495 2017 96414.4582139712 2018 97991.2962180569