Year Percent 2004-01-01 3.3200 2005-01-01 3.7300 2006-01-01 3.2800 2007-01-01 3.8791 2008-01-01 2.4864 2009-01-01 0.3546 2010-01-01 0.4981 2011-01-01 0.6270 2012-01-01 0.0734 2013-01-01 0.1686 2014-01-01 -0.0301 2015-01-01 -0.1990 2016-01-01 -0.3504 2017-01-01 -0.3423