Year Percent Change From Preceding Period 2004-01-01 0.820793433652509 2005-01-01 3.358208955223960 2006-01-01 1.952740400393760 2007-01-01 4.627394173507200 2008-01-01 10.445350357664800 2009-01-01 -1.636604220349600 2010-01-01 1.070516405804320 2011-01-01 5.055236308590160 2012-01-01 2.060700514364010 2013-01-01 0.779248473943811 2014-01-01 -1.031727561864550 2015-01-01 1.481423420598840 2016-01-01 1.498416621610550 2017-01-01 1.057758161479950 2018-01-01 1.999999999999690 2019-01-01 2.150000000000010