Year Percent Change From Preceding Period 2004-01-01 2.245353979833440 2005-01-01 6.428403838527450 2006-01-01 3.504680529773200 2007-01-01 4.432913190926530 2008-01-01 6.673102413304890 2009-01-01 4.515002242534470 2010-01-01 4.238394885420550 2011-01-01 3.379640673205740 2012-01-01 -0.935517454455885 2013-01-01 1.708517672406410 2014-01-01 1.626137382894120 2015-01-01 2.648588978640380 2016-01-01 -0.667596035334287 2017-01-01 1.746915251880320 2018-01-01 2.777585226982620 2019-01-01 2.965810739873540