Year Percent Change 2000-01-01 8.3000 2001-01-01 10.2000 2002-01-01 9.1000 2003-01-01 10.2000 2004-01-01 10.6000 2005-01-01 6.7000 2006-01-01 7.0000 2007-01-01 7.7999 2008-01-01 7.9000 2009-01-01 3.9000 2010-01-01 6.5000 2011-01-01 7.4000 2012-01-01 7.5000 2013-01-01 7.4000 2014-01-01 6.7000 2015-01-01 6.0000 2016-01-01 6.9000 2017-01-01 7.1400 2018-01-01 4.0000 2019-01-01 4.0000