Quarterly Percent
1999-04-01 67
2000-01-01 66.1
2000-04-01 66.9
2000-07-01 67
2000-10-01 66.4
2001-01-01 66.1
2001-04-01 67
2001-07-01 66.9
2001-10-01 67.1
2002-01-01 66.9
2002-04-01 67.6
2002-07-01 67.3
2002-10-01 66.6
2003-01-01 65.9
2003-04-01 66.4
2003-07-01 66.8
2003-10-01 66.1
2004-01-01 65.3
2004-04-01 66.4
2004-07-01 66.4
2004-10-01 66
2005-01-01 65.1
2005-04-01 65.4
2005-07-01 66.2
2005-10-01 65.8
2006-01-01 65.2
2006-04-01 65.9
2006-07-01 66.4
2006-10-01 66.5
2007-01-01 66.7
2007-04-01 67.6
2007-07-01 68
2007-10-01 68.6
2008-01-01 68.8
2008-04-01 69.1
2008-07-01 69.1
2008-10-01 68.7
2009-01-01 68.5
2009-04-01 68.3
2009-07-01 67.6
2009-10-01 67.3
2010-01-01 66.6
2010-04-01 67
2010-07-01 66.5
2010-10-01 66.4
2011-01-01 66.5
2011-04-01 66.7
2011-07-01 66.6
2011-10-01 66.4
2012-01-01 66.5
2012-04-01 67.3
2012-07-01 66.7
2012-10-01 66.1
2013-01-01 65.8
2013-04-01 66.2
2013-07-01 66.3
2013-10-01 66.1
2014-01-01 60.5
2014-04-01 60.8
2014-07-01 60.6
2014-10-01 61.2
2015-01-01 59.2
2015-04-01 60.5
2015-07-01 60.0
2015-10-01 59.3
2016-01-01 59.7
2016-04-01 59.4
2016-07-01 60.2
2016-10-01 59.2
2017-01-01 58.9
2017-04-01 59.4
2017-07-01 59.4
2017-10-01 58.9
2018-01-01 58.9
2018-04-01 59.5