Quarterly Percent
1999-04-01 51
2000-04-01 51.1
2001-04-01 50.7
2002-04-01 50.6
2003-04-01 50.3
2004-04-01 50.6
2005-01-01 48.9
2005-04-01 49.2
2005-07-01 48.9
2005-10-01 48.6
2006-01-01 48.3
2006-04-01 48.2
2006-07-01 47.8
2006-10-01 47.7
2007-01-01 48.2
2007-04-01 47.8
2007-07-01 47.3
2007-10-01 47
2008-01-01 47.9
2008-04-01 48
2008-07-01 47.1
2008-10-01 46.9
2009-01-01 47.6
2009-04-01 47.4
2009-07-01 47.2
2009-10-01 46.1
2010-01-01 47.1
2010-04-01 47.1
2010-07-01 47.0
2010-10-01 46.6
2011-01-01 46.6
2011-04-01 46.2
2011-07-01 45.6
2011-10-01 45.6
2012-01-01 46.5
2012-04-01 46.1
2012-07-01 45.7
2012-10-01 45.6
2013-01-01 45.6
2013-04-01 45.5
2013-07-01 45.3
2013-10-01 45.3
2014-01-01 45.5
2014-04-01 45.3
2014-07-01 45
2014-10-01 45.2
2015-01-01 45.5
2015-04-01 45.4
2015-07-01 45.3
2015-10-01 44.9
2016-01-01 44.5
2016-04-01 44.7
2016-07-01 44.2
2016-10-01 44.1
2017-01-01 44.5
2017-04-01 44.5
2017-07-01 44.0
2017-10-01 43.5
2018-01-01 44.4
2018-04-01 44.5