Year Percent Change From Preceding Period 2004-01-01 3.309369708843630 2005-01-01 3.992165684017590 2006-01-01 4.282660539045000 2007-01-01 4.011902970616340 2008-01-01 1.837528079143100 2009-01-01 -2.859381333658630 2010-01-01 1.625386415966850 2011-01-01 1.834249309209040 2012-01-01 0.746337506832353 2013-01-01 0.981790920269778 2014-01-01 0.320594776471712 2015-01-01 -0.270658416910357 2016-01-01 -1.007657858459790 2017-01-01 -0.300097565352714 2018-01-01 -0.818065174774584 2019-01-01 -0.186108922978786