Quarterly Percent
1999-01-01 63.5
1999-04-01 61
1999-07-01 58.2
1999-10-01 59.9
2000-01-01 65.3
2000-04-01 66.4
2000-07-01 58.6
2000-10-01 63.9
2001-01-01 65.9
2001-04-01 68.3
2001-07-01 63.9
2001-10-01 67.2
2002-01-01 68
2002-04-01 67.4
2002-07-01 66
2002-10-01 68.6
2003-01-01 70.2
2003-04-01 71.1
2003-07-01 69.7
2003-10-01 67.8
2004-01-01 66.7
2004-04-01 64.6
2004-07-01 62.3
2004-10-01 65
2005-01-01 64.9
2005-04-01 68.2
2005-07-01 59.6
2005-10-01 62.2
2006-01-01 63.8
2006-04-01 62.3
2006-07-01 62
2006-10-01 66.2
2007-01-01 67.5
2007-04-01 65.9
2007-07-01 59.3
2007-10-01 65.6
2008-01-01 65.6
2008-04-01 64.6
2008-07-01 56.4
2008-10-01 63.8
2009-01-01 68.7
2009-04-01 64.6
2009-07-01 56.7
2009-10-01 67
2010-01-01 66.2
2010-04-01 64.5
2010-07-01 63.8
2010-10-01 66.2
2011-01-01 70.6
2011-04-01 69.4
2011-07-01 66.6
2011-10-01 64.2
2012-01-01 67.2
2012-04-01 75.4
2012-07-01 67.5
2012-10-01 69.8
2013-01-01 70.9
2013-04-01 70.2
2013-07-01 64.9
2013-10-01 73.3
2014-01-01 73.8
2014-04-01 69.5
2014-07-01 66.1
2014-10-01 68.9
2015-01-01 72.0
2015-04-01 66.6
2015-07-01 64.9
2015-10-01 69.8
2016-01-01 73.1
2016-04-01 69.7
2016-07-01 66.0
2016-10-01 69.0
2017-01-01 68.3
2017-04-01 66.7
2017-07-01 60.2
2017-10-01 65.1
2018-01-01 64.9
2018-04-01 64.8