Year	Percent Change from Year Ago
1998-01-01	8.669103055388260
1999-01-01	10.524366595070300
2000-01-01	9.456198340791840
2001-01-01	5.319139424076580
2002-01-01	5.928027495306330
2003-01-01	2.954744624609950
2004-01-01	6.571101290133190
2005-01-01	5.667736698415720
2006-01-01	5.044522621969620
2007-01-01	5.309118310824680
2008-01-01	-4.405380555419300
2009-01-01	-5.022238990710030
2010-01-01	1.922042204995760
2011-01-01	3.720998588864700
2012-01-01	0.182645432381044
2013-01-01	1.336921166458730
2014-01-01	8.800530320666760
2015-01-01	25.117251843162500
2016-01-01	4.987582014555470
2017-01-01	7.221787739638360