Year Percent 2005-01-01 44.0154729819931 2006-01-01 44.1311237434722 2007-01-01 44.7892097542986 2008-01-01 45.1021284544404 2009-01-01 44.1672262464569 2010-01-01 43.8248324155223 2011-01-01 43.8647132868691 2012-01-01 43.6471339018203