Quarterly Percent
1999-04-01 49.6
2000-04-01 50
2001-04-01 50.9
2002-04-01 50.8
2003-04-01 50.7
2004-04-01 50
2005-01-01 51.1
2005-04-01 50.9
2005-07-01 51
2005-10-01 51.4
2006-01-01 51.8
2006-04-01 52.4
2006-07-01 52.7
2006-10-01 53
2007-01-01 52.9
2007-04-01 53.4
2007-07-01 54.1
2007-10-01 54.4
2008-01-01 53.9
2008-04-01 53.9
2008-07-01 54.9
2008-10-01 55.5
2009-01-01 54.5
2009-04-01 55
2009-07-01 55
2009-10-01 56.4
2010-01-01 55.5
2010-04-01 56.0
2010-07-01 56.4
2010-10-01 56.8
2011-01-01 57
2011-04-01 58
2011-07-01 58.4
2011-10-01 58.6
2012-01-01 57.8
2012-04-01 58.4
2012-07-01 58.8
2012-10-01 58.9
2013-01-01 59.1
2013-04-01 59.6
2013-07-01 59.8
2013-10-01 59.7
2014-01-01 59.8
2014-04-01 60.2
2014-07-01 60.4
2014-10-01 60.5
2015-01-01 60.4
2015-04-01 60.7
2015-07-01 60.9
2015-10-01 61.0
2016-01-01 61.4
2016-04-01 61.5
2016-07-01 62.4
2016-10-01 62.7
2017-01-01 62.1
2017-04-01 62.4
2017-07-01 63.0
2017-10-01 63.4
2018-01-01 62.6
2018-04-01 62.6