Quarterly Percent
1999-04-01 69.2
1999-07-01 71.9
1999-10-01 70.7
2000-01-01 70.6
2000-04-01 71.1
2000-07-01 73.2
2000-10-01 71.6
2001-01-01 71.4
2001-04-01 71.6
2001-07-01 73.4
2001-10-01 71.6
2002-01-01 70.6
2002-04-01 70.5
2002-07-01 71.9
2002-10-01 70.6
2003-01-01 70.1
2003-04-01 70.2
2003-07-01 71.4
2003-10-01 70.8
2004-01-01 70.9
2004-04-01 70.5
2004-07-01 72.3
2004-10-01 71.3
2005-01-01 71.3
2005-04-01 71.6
2005-07-01 73.4
2005-10-01 72.3
2006-01-01 72.6
2006-04-01 72.8
2006-07-01 74.1
2006-10-01 73.3
2007-01-01 75.7
2007-04-01 75.8
2007-07-01 76.6
2007-10-01 75.1
2008-01-01 73.9
2008-04-01 73.5
2008-07-01 72.9
2008-10-01 70.1
2009-01-01 66.0
2009-04-01 64.6
2009-07-01 63.8
2009-10-01 62.4
2010-01-01 61.1
2010-04-01 61.4
2010-07-01 61.4
2010-10-01 60.0
2011-01-01 59.4
2011-04-01 60.0
2011-07-01 59.9
2011-10-01 59.8
2012-01-01 58.8
2012-04-01 59.3
2012-07-01 60.0
2012-10-01 60.0
2013-01-01 60.2
2013-04-01 61.2
2013-07-01 62.6
2013-10-01 63.1
2014-01-01 62.3
2014-04-01 62.8
2014-07-01 64.1
2014-10-01 64.4
2015-01-01 64.1
2015-04-01 65.2
2015-07-01 65.9
2015-10-01 65.3
2016-01-01 65.0
2016-04-01 66.3
2016-07-01 67.4
2016-10-01 67.2
2017-01-01 66.7
2017-04-01 67.1
2017-07-01 68.1
2017-10-01 68.2
2018-01-01 68.1
2018-04-01 68.2