Year Number 2007-01-01 57.8111 2008-01-01 70.1245 2009-01-01 77.1705 2010-01-01 83.2740 2011-01-01 89.6229 2012-01-01 97.8994 2013-01-01 97.4042 2014-01-01 138.2879 2015-01-01 122.3549 2016-01-01 128.1554