Quarterly Percent
2000-04-01 50.6
2001-04-01 50.8
2002-04-01 51.6
2003-04-01 52.5
2004-04-01 53.0
2005-01-01 53.7
2005-04-01 53.8
2005-07-01 53.8
2005-10-01 54.1
2006-01-01 54.3
2006-04-01 54.5
2006-07-01 54.7
2006-10-01 55.0
2007-01-01 54.7
2007-04-01 55.1
2007-07-01 55.4
2007-10-01 55.6
2008-01-01 55.5
2008-04-01 55.7
2008-07-01 56.0
2008-10-01 56.2
2009-01-01 56.0
2009-04-01 56.3
2009-07-01 56.2
2009-10-01 56.5
2010-01-01 56.3
2010-04-01 56.5
2010-07-01 56.5
2010-10-01 56.7
2011-01-01 56.6
2011-04-01 56.9
2011-07-01 57.0
2011-10-01 57.3
2012-01-01 57.3
2012-04-01 57.6
2012-07-01 57.6
2012-10-01 57.8
2013-01-01 57.8
2013-04-01 57.9
2013-07-01 57.8
2013-10-01 58.0
2014-01-01 57.9
2014-04-01 58.0
2014-07-01 58.0
2014-10-01 58.3
2015-01-01 58.0
2015-04-01 58.2
2015-07-01 58.1
2015-10-01 58.4
2016-01-01 58.4
2016-04-01 58.6
2016-07-01 58.8
2016-10-01 58.8
2017-01-01 58.6
2017-04-01 58.8
2017-07-01 58.9
2017-10-01 59.1
2018-01-01 58.8
2018-04-01 59.0
