Quarterly Percent
1999-04-01 73.6
1999-07-01 76.6
1999-10-01 75.2
2000-01-01 75.2
2000-04-01 75.7
2000-07-01 78.1
2000-10-01 76.3
2001-01-01 76.1
2001-04-01 76.2
2001-07-01 78.2
2001-10-01 76.1
2002-01-01 75
2002-04-01 75
2002-07-01 76.6
2002-10-01 75.1
2003-01-01 74.6
2003-04-01 74.7
2003-07-01 76.1
2003-10-01 75.4
2004-01-01 75.5
2004-04-01 75.2
2004-07-01 77.1
2004-10-01 76
2005-01-01 76
2005-04-01 76.2
2005-07-01 78.2
2005-10-01 77
2006-01-01 77.3
2006-04-01 77.4
2006-07-01 78.8
2006-10-01 77.9
2007-01-01 80.4
2007-04-01 80.4
2007-07-01 81.2
2007-10-01 79.6
2008-01-01 78.3
2008-04-01 78.0
2008-07-01 77.4
2008-10-01 74.4
2009-01-01 70.0
2009-04-01 68.6
2009-07-01 67.8
2009-10-01 66.4
2010-01-01 65.0
2010-04-01 65.3
2010-07-01 65.4
2010-10-01 63.9
2011-01-01 63.3
2011-04-01 64.0
2011-07-01 64.1
2011-10-01 64.0
2012-01-01 62.8
2012-04-01 63.4
2012-07-01 64.3
2012-10-01 64.2
2013-01-01 64.6
2013-04-01 65.8
2013-07-01 67.3
2013-10-01 67.9
2014-01-01 67.0
2014-04-01 67.7
2014-07-01 69.1
2014-10-01 69.4
2015-01-01 69.1
2015-04-01 70.2
2015-07-01 71.1
2015-10-01 70.5
2016-01-01 70.2
2016-04-01 71.6
2016-07-01 72.9
2016-10-01 72.7
2017-01-01 72.3
2017-04-01 72.6
2017-07-01 73.7
2017-10-01 73.5
2018-01-01 73.6
2018-04-01 73.8