Year Number 2006-01-01 155.8140 2007-01-01 165.1163 2008-01-01 190.6977 2009-01-01 193.0233 2010-01-01 193.0233 2011-01-01 172.0930 2012-01-01 193.0233 2013-01-01 197.6744 2014-01-01 230.2326 2015-01-01 197.6744 2016-01-01 127.9070