Quarterly Percent
1999-04-01 54.6
1999-07-01 57
1999-10-01 55.9
2000-01-01 55.9
2000-04-01 56.4
2000-07-01 58.4
2000-10-01 57
2001-01-01 56.9
2001-04-01 57
2001-07-01 58.9
2001-10-01 57.5
2002-01-01 57.1
2002-04-01 57.1
2002-07-01 58.3
2002-10-01 57
2003-01-01 56.8
2003-04-01 57
2003-07-01 58.1
2003-10-01 57.5
2004-01-01 57.5
2004-04-01 57.4
2004-07-01 58.8
2004-10-01 58.4
2005-01-01 58.5
2005-04-01 58.9
2005-07-01 60.3
2005-10-01 59.4
2006-01-01 59.7
2006-04-01 60
2006-07-01 61.2
2006-10-01 60.6
2007-01-01 63.0
2007-04-01 63.3
2007-07-01 64.0
2007-10-01 63.0
2008-01-01 62.3
2008-04-01 62.1
2008-07-01 61.7
2008-10-01 59.8
2009-01-01 57.2
2009-04-01 56.4
2009-07-01 55.8
2009-10-01 54.7
2010-01-01 53.8
2010-04-01 53.9
2010-07-01 53.6
2010-10-01 52.7
2011-01-01 52.2
2011-04-01 52.8
2011-07-01 52.4
2011-10-01 52.4
2012-01-01 51.7
2012-04-01 52.1
2012-07-01 52.3
2012-10-01 52.4
2013-01-01 52.3
2013-04-01 53.2
2013-07-01 54.1
2013-10-01 54.2
2014-01-01 53.6
2014-04-01 54.0
2014-07-01 54.9
2014-10-01 55.2
2015-01-01 54.8
2015-04-01 55.6
2015-07-01 56.2
2015-10-01 56.2
2016-01-01 55.9
2016-04-01 57.0
2016-07-01 57.6
2016-10-01 57.5
2017-01-01 57.2
2017-04-01 57.6
2017-07-01 58.1
2017-10-01 58.4
2018-01-01 58.1
2018-04-01 58.6