Year Percent Change 2000-01-01 39.0687 2001-01-01 18.4711 2002-01-01 17.9025 2003-01-01 22.7909 2004-01-01 42.5830 2005-01-01 26.4065 2006-01-01 46.3140 2007-01-01 46.5680 2008-01-01 7.8515 2009-01-01 7.7659 2010-01-01 23.8914 2011-01-01 20.2670 2012-01-01 11.3551 2013-01-01 24.3616 2014-01-01 13.8045 2015-01-01 19.1729 2016-01-01 20.4056 2017-01-01 14.8123 2018-01-01 13.3826 2019-01-01 12.0450