Year	Percent Change From Preceding Period
2004-01-01	26.32576503491360
2005-01-01	29.55768998448760
2006-01-01	30.56331360889140
2007-01-01	87.16707951338600
2008-01-01	61.59586507776540
2009-01-01	22.00940715524820
2010-01-01	-5.56239297161403
2011-01-01	2.58288753052590
2012-01-01	6.62143047277919
2013-01-01	9.36906790277078
2014-01-01	17.99311433963510
2015-01-01	4.56808624895763
2016-01-01	23.35324731615800
2017-01-01	-4.42192394869277