Quarterly Percent
1999-04-01 35
2000-01-01 34.6
2000-04-01 33.8
2000-07-01 34.7
2000-10-01 33.6
2001-01-01 33.3
2001-04-01 33.2
2001-07-01 33.2
2001-10-01 33.5
2002-01-01 33.6
2002-04-01 32.2
2002-07-01 33
2002-10-01 32.9
2003-01-01 32.1
2003-04-01 33
2003-07-01 32
2003-10-01 31.9
2004-01-01 33.5
2004-04-01 33.1
2004-07-01 33.4
2004-10-01 33.3
2005-01-01 33.6
2005-04-01 34.1
2005-07-01 33.2
2005-10-01 33
2006-01-01 32.5
2006-04-01 31.8
2006-07-01 31.9
2006-10-01 31.2
2007-01-01 31.3
2007-04-01 30.4
2007-07-01 30.3
2007-10-01 29.5
2008-01-01 30
2008-04-01 30
2008-07-01 30.3
2008-10-01 30.1
2009-01-01 30.7
2009-04-01 30.2
2009-07-01 30.8
2009-10-01 30.3
2010-01-01 30.7
2010-04-01 29.7
2010-07-01 30.8
2010-10-01 30.4
2011-01-01 30.8
2011-04-01 29.7
2011-07-01 29
2011-10-01 28.8
2012-01-01 28.6
2012-04-01 28.2
2012-07-01 28
2012-10-01 28.1
2013-01-01 28.8
2013-04-01 27.3
2013-07-01 27.7
2013-10-01 28.4
2014-01-01 27.9
2014-04-01 27.3
2014-07-01 26.6
2014-10-01 25.8
2015-01-01 26.8
2015-04-01 26.6
2015-07-01 26.4
2015-10-01 26.6
2016-01-01 26.0
2016-04-01 25.7
2016-07-01 26.0
2016-10-01 26.0
2017-01-01 26.5
2017-04-01 26.7
2017-07-01 26.9
2017-10-01 27.1
2018-01-01 26.6
2018-04-01 26.7