Year	Percent Change From Preceding Period
2004-01-01	31.95664208595440
2005-01-01	3.25496701207701
2006-01-01	44.04808804787240
2007-01-01	25.26645707207100
2008-01-01	23.22862457157820
2009-01-01	7.66123120594909
2010-01-01	29.85907512032380
2011-01-01	21.70197938603110
2012-01-01	17.85942813544300
2013-01-01	20.79157951177050
2014-01-01	12.61808529883010
2015-01-01	35.19247148848580
2016-01-01	-5.70227249362343
2017-01-01	21.35614566562040
2018-01-01	19.91385965488050
2019-01-01	12.38180208825530