Year Percent Change 2000-01-01 13.1817 2001-01-01 22.2211 2002-01-01 17.3950 2003-01-01 15.5566 2004-01-01 8.5305 2005-01-01 11.6922 2006-01-01 19.6460 2007-01-01 23.0907 2008-01-01 16.0371 2009-01-01 4.8408 2010-01-01 13.5484 2011-01-01 19.9070 2012-01-01 10.9369 2013-01-01 8.4100 2014-01-01 14.4237 2015-01-01 0.2971 2016-01-01 0.8158 2017-01-01 8.2654 2018-01-01 11.4193 2019-01-01 4.9710