Year including construction (constant 2010 US$) 1995 12291.0703976782 1996 13182.1428321954 1997 14728.2387181651 1998 15257.5739914026 1999 16206.3405798909 2000 16521.2557049696 2001 17550.6609695005 2002 19615.6239133606 2003 19669.7744858194 2004 21164.01568291 2005 22684.4470254219 2006 23729.4019078189 2007 23487.5415409283 2008 21909.1299908284 2009 23400.4102553852 2010 25013.2475499528 2011 26852.7892007182 2012 26574.6738056715 2013 25454.7427642377 2014 25606.5195133946 2015 26029.7835944816 2016 25284.5341528897 2017 28770.142244662 2018 31247.9593573274