Quarterly Percent
1999-04-01 45.9
1999-07-01 48.4
1999-10-01 47
2000-01-01 46.7
2000-04-01 47.2
2000-07-01 49.3
2000-10-01 47.8
2001-01-01 47.6
2001-04-01 47.6
2001-07-01 50
2001-10-01 48.6
2002-01-01 48.7
2002-04-01 48.8
2002-07-01 50.2
2002-10-01 48.9
2003-01-01 48.9
2003-04-01 49.1
2003-07-01 50.8
2003-10-01 49.7
2004-01-01 49.5
2004-04-01 49.4
2004-07-01 51.1
2004-10-01 50.8
2005-01-01 50.9
2005-04-01 51.4
2005-07-01 52.9
2005-10-01 52.1
2006-01-01 52.2
2006-04-01 52.6
2006-07-01 54.2
2006-10-01 53.2
2007-01-01 56.2
2007-04-01 57.1
2007-07-01 57.7
2007-10-01 56.8
2008-01-01 56.6
2008-04-01 56.9
2008-07-01 57.6
2008-10-01 56.3
2009-01-01 55.8
2009-04-01 56.5
2009-07-01 56.8
2009-10-01 55.4
2010-01-01 54.8
2010-04-01 55.7
2010-07-01 55.5
2010-10-01 55.0
2011-01-01 54.4
2011-04-01 55.4
2011-07-01 55.2
2011-10-01 54.8
2012-01-01 54.6
2012-04-01 55.0
2012-07-01 55.0
2012-10-01 54.4
2013-01-01 54.5
2013-04-01 55.8
2013-07-01 55.8
2013-10-01 55.0
2014-01-01 54.6
2014-04-01 54.8
2014-07-01 55.6
2014-10-01 54.7
2015-01-01 54.2
2015-04-01 55.0
2015-07-01 55.2
2015-10-01 54.9
2016-01-01 54.6
2016-04-01 56.1
2016-07-01 56.1
2016-10-01 55.5
2017-01-01 55.4
2017-04-01 55.5
2017-07-01 55.9
2017-10-01 55.9
2018-01-01 55.1
2018-04-01 56.4