Year	Percent Change From Preceding Period
2004-01-01	31.01327023331760
2005-01-01	18.53001544359830
2006-01-01	12.20676075823900
2007-01-01	11.77598461192360
2008-01-01	13.16997011910510
2009-01-01	13.98709054158280
2010-01-01	15.32164566217080
2011-01-01	11.37553088933000
2012-01-01	9.04235961301067
2013-01-01	7.68722029926986
2014-01-01	7.49794072553663
2015-01-01	12.09083859578190
2016-01-01	41.12545271252030
2017-01-01	23.66654967214050
2018-01-01	20.00641910440600
2019-01-01	12.00000000000040