Year	Percent Change from Year Ago
1991-01-01	8.927725584294590
1992-01-01	6.524117989212080
1993-01-01	7.955437138533200
1994-01-01	7.539968809121560
1995-01-01	8.220146068882640
1996-01-01	7.817992464164930
1997-01-01	4.699904156087810
1998-01-01	-13.126748573962200
1999-01-01	0.791152861456185
2000-01-01	4.920041386309560
2001-01-01	3.643466447215480
2002-01-01	4.499475390856880
2003-01-01	4.780369121675790
2004-01-01	5.030873945017890
2005-01-01	5.692571303834650
2006-01-01	5.500951785202690
2007-01-01	6.345022244548800
2008-01-01	6.013702502632850
2009-01-01	4.701768517050640
2010-01-01	6.377625685656660
2011-01-01	6.169784207710090
2012-01-01	6.030050653056130
2013-01-01	5.557263688910110
2014-01-01	5.006668425754980
2015-01-01	4.876322300221230
2016-01-01	5.033279591530080
2017-01-01	5.067680274089750