Year including construction (constant 2010 US$) 1994 1070.34969361245 1995 1222.88003497162 1996 1242.38853120867 1997 1390.32216657067 1998 1415.42867340795 1999 1618.58818182827 2000 2041.1499306482 2001 1631.73359841474 2002 1699.44793752961 2003 1709.39043531633 2004 1808.06020712868 2005 1786.70726818476 2006 1854.85239528494 2007 1779.63379379772 2008 1660.81526056055 2009 1357.45305161485 2010 1393.45660434861 2011 1470.92032938882 2012 1478.59075577433 2013 1606.95511504451 2014 1729.61585749377 2015 1886.52130384045 2016 2009.70258328413 2017 2160.58467293781 2018 2362.48402757237