Year Number 2005-01-01 44.0111 2006-01-01 48.1305 2007-01-01 50.1048 2008-01-01 65.9934 2009-01-01 74.9213 2010-01-01 131.1752 2011-01-01 139.9919 2012-01-01 101.9386 2013-01-01 145.8654 2014-01-01 153.8287 2015-01-01 168.6923 2016-01-01 183.5917