Year Percent 2003-01-01 42.8812609575278 2004-01-01 43.6769780266801 2005-01-01 43.5993915838976 2006-01-01 44.2725346125605 2007-01-01 44.8462290511517 2008-01-01 46.4301798400898 2009-01-01 44.8462034031244 2010-01-01 46.0324736299771 2011-01-01 46.5637347784466 2012-01-01 46.7378046191501 2013-01-01 45.3298091954550 2014-01-01 43.3826333012091