Year	Percent Change
2000-01-01	3.8
2001-01-01	4.2
2002-01-01	4.0
2003-01-01	4.2
2004-01-01	7.4
2005-01-01	7.0
2006-01-01	7.5
2007-01-01	9.5
2008-01-01	9.0
2009-01-01	8.1
2010-01-01	8.5
2011-01-01	8.3
2012-01-01	8.2
2013-01-01	8.0
2014-01-01	8.0
2015-01-01	7.9
2016-01-01	7.8
2017-01-01	5.3
2018-01-01	5.0
2019-01-01	5.0