Year Percent Change From Preceding Period 2004-01-01 1.08542889636767 2005-01-01 1.71726823129757 2006-01-01 10.95402188435050 2007-01-01 6.33628407956711 2008-01-01 5.13058511982237 2009-01-01 -3.27317629412005 2010-01-01 13.10910827265130 2011-01-01 10.46352894076010 2012-01-01 7.07826541262987 2013-01-01 7.67992864564996 2014-01-01 5.10400991613382 2015-01-01 3.83939733020998 2016-01-01 3.25838783458301 2017-01-01 1.74684638384174 2018-01-01 2.29370315059624 2019-01-01 4.00101574963616