Year Percent Change 2000-01-01 25.0064 2001-01-01 27.2509 2002-01-01 27.2906 2003-01-01 12.4943 2004-01-01 7.3253 2005-01-01 10.7033 2006-01-01 13.1092 2007-01-01 11.1542 2008-01-01 13.1278 2009-01-01 12.2982 2010-01-01 12.3039 2011-01-01 12.4471 2012-01-01 11.9002 2013-01-01 11.6999 2014-01-01 9.0791 2015-01-01 8.4645 2016-01-01 7.9824 2017-01-01 12.5457 2018-01-01 19.5213 2019-01-01 12.8516