Year Percent Change 2000-01-01 19.6878 2001-01-01 6.9197 2002-01-01 2.1342 2003-01-01 3.0115 2004-01-01 4.1107 2005-01-01 4.3387 2006-01-01 5.5521 2007-01-01 10.2301 2008-01-01 24.5201 2009-01-01 6.8366 2010-01-01 7.9677 2011-01-01 16.6363 2012-01-01 2.7684 2013-01-01 6.6138 2014-01-01 7.5342 2015-01-01 6.5033 2016-01-01 0.3948 2017-01-01 3.1721 2018-01-01 4.4985 2019-01-01 4.9536