Year	Percent Change From Preceding Period
2004-01-01	11.70000000000000
2005-01-01	12.60000000000010
2006-01-01	11.49999999999990
2007-01-01	11.80000000000000
2008-01-01	11.20000000000000
2009-01-01	10.00000000000020
2010-01-01	10.59999999999990
2011-01-01	11.40000000000000
2012-01-01	8.70000000000003
2013-01-01	9.90000000000009
2014-01-01	10.29999999999970
2015-01-01	10.40000000000010
2016-01-01	8.00000000000008
2017-01-01	10.86077162156800
2018-01-01	7.49494016658731
2019-01-01	8.49384546696356