Quarterly Percent
1999-01-01 68
1999-04-01 69.2
1999-07-01 70.1
1999-10-01 69.8
2000-01-01 70.1
2000-04-01 71
2000-07-01 71.9
2000-10-01 71.8
2001-01-01 71.6
2001-04-01 72.5
2001-07-01 73.1
2001-10-01 72.7
2002-01-01 72.1
2002-04-01 72.8
2002-07-01 73
2002-10-01 72.6
2003-01-01 72.5
2003-04-01 73.2
2003-07-01 73.7
2003-10-01 73.4
2004-01-01 73
2004-04-01 73.4
2004-07-01 74
2004-10-01 74
2005-01-01 74.1
2005-04-01 74.9
2005-07-01 75.9
2005-10-01 75.5
2006-01-01 75.5
2006-04-01 76
2006-07-01 76.6
2006-10-01 76.1
2007-01-01 75.8
2007-04-01 76.5
2007-07-01 76.6
2007-10-01 75.6
2008-01-01 74.9
2008-04-01 74.3
2008-07-01 73.4
2008-10-01 70.7
2009-01-01 67.5
2009-04-01 66.8
2009-07-01 66.3
2009-10-01 65.3
2010-01-01 64.4
2010-04-01 65
2010-07-01 65.3
2010-10-01 64.4
2011-01-01 63.6
2011-04-01 63.8
2011-07-01 63.7
2011-10-01 62.3
2012-01-01 60.6
2012-04-01 60.6
2012-07-01 60.6
2012-10-01 59.4
2013-01-01 58.4
2013-04-01 59.2
2013-07-01 59.8
2013-10-01 59.5
2014-01-01 58.9
2014-04-01 60.6
2014-07-01 61.7
2014-10-01 61.5
2015-01-01 61.2
2015-04-01 62.9
2015-07-01 63.8
2015-10-01 63.7
2016-01-01 63.7
2016-04-01 64.6
2016-07-01 65.5
2016-10-01 65.2
2017-01-01 65.1
2017-04-01 66.5
2017-07-01 67.5
2017-10-01 66.9
2018-01-01 66.5
2018-04-01 68.0
2018-07-01 68.7
