Quarterly Percent
1999-04-01 62.7
2000-01-01 66.4
2000-04-01 68.4
2000-07-01 69.9
2000-10-01 70.2
2001-01-01 69.3
2001-04-01 70.4
2001-07-01 72
2001-10-01 69.9
2002-01-01 68.7
2002-04-01 70.5
2002-07-01 71.2
2002-10-01 69.8
2003-01-01 68.2
2003-04-01 68.7
2003-07-01 69.4
2003-10-01 67.1
2004-01-01 65.5
2004-04-01 66.2
2004-07-01 66.7
2004-10-01 65
2005-01-01 64
2005-04-01 65.2
2005-07-01 66.4
2005-10-01 65.2
2006-01-01 64.5
2006-04-01 66.2
2006-07-01 67.4
2006-10-01 66.6
2007-01-01 66.3
2007-04-01 68.6
2007-07-01 70.4
2007-10-01 68.4
2008-01-01 68
2008-04-01 69.3
2008-07-01 70.5
2008-10-01 69.4
2009-01-01 68.1
2009-04-01 68.4
2009-07-01 68.7
2009-10-01 66.6
2010-01-01 62
2010-04-01 63.2
2010-07-01 64.3
2010-10-01 62.6
2011-01-01 59.4
2011-04-01 61.1
2011-07-01 62.8
2011-10-01 61.8
2012-01-01 60.1
2012-04-01 61.0
2012-07-01 62.4
2012-10-01 61.0
2013-01-01 59.3
2013-04-01 60.5
2013-07-01 61.0
2013-10-01 59.5
2014-01-01 57.2
2014-04-01 58.4
2014-07-01 60.1
2014-10-01 59.5
2015-01-01 59.5
2015-04-01 61.3
2015-07-01 62.0
2015-10-01 60.2
2016-01-01 59.1
2016-04-01 61.1
2016-07-01 62.3
2016-10-01 60.8
2017-01-01 60.1
2017-04-01 61.9
2017-07-01 64.0
2017-10-01 63.1
2018-01-01 62.4
2018-04-01 63.9