Quarterly Percent
1999-04-01 57.3
2000-04-01 57.5
2001-04-01 57.7
2002-04-01 57.2
2003-04-01 56.5
2004-04-01 55.7
2005-01-01 56.4
2005-04-01 56.7
2005-07-01 57
2005-10-01 57.2
2006-01-01 57.1
2006-04-01 57.9
2006-07-01 58.4
2006-10-01 58.8
2007-01-01 58.3
2007-04-01 59.1
2007-07-01 59.8
2007-10-01 60
2008-01-01 59.5
2008-04-01 59.6
2008-07-01 60.9
2008-10-01 60.9
2009-01-01 59.8
2009-04-01 60
2009-07-01 60.3
2009-10-01 61.3
2010-01-01 60.4
2010-04-01 61
2010-07-01 61.6
2010-10-01 61.9
2011-01-01 61.9
2011-04-01 62.9
2011-07-01 63.4
2011-10-01 63.7
2012-01-01 62.7
2012-04-01 63.3
2012-07-01 64
2012-10-01 64
2013-01-01 63.5
2013-04-01 64.2
2013-07-01 64.6
2013-10-01 64.6
2014-01-01 64.1
2014-04-01 64.6
2014-07-01 65.2
2014-10-01 65.1
2015-01-01 64.7
2015-04-01 64.8
2015-07-01 65.3
2015-10-01 65.6
2016-01-01 65.6
2016-04-01 65.7
2016-07-01 66.7
2016-10-01 66.9
2017-01-01 66.1
2017-04-01 66.5
2017-07-01 67.2
2017-10-01 67.5
2018-01-01 66.8
2018-04-01 66.9
