Year	Percent Change From Preceding Period
2004-01-01	7.97591980425252
2005-01-01	8.16011348353732
2006-01-01	8.33653714328802
2007-01-01	8.51633790004703
2008-01-01	8.71641297201764
2009-01-01	8.41627995334127
2010-01-01	7.40921508589802
2011-01-01	7.62099357372673
2012-01-01	21.29569678513400
2013-01-01	28.27905561565250
2014-01-01	23.77526402679600
2015-01-01	21.85797134314610
2016-01-01	21.72673742904810
2017-01-01	12.19458825899600
2018-01-01	9.19404581063300
2019-01-01	8.36078074836934