Quarterly Percent
1999-01-01 59.9
1999-04-01 60.5
1999-07-01 60.6
1999-10-01 61.7
2000-01-01 62.5
2000-04-01 62.7
2000-07-01 62.8
2000-10-01 63.4
2001-01-01 61.1
2001-04-01 60.9
2001-07-01 61.1
2001-10-01 62
2002-01-01 63.9
2002-04-01 64.7
2002-07-01 65
2002-10-01 65.6
2003-01-01 66.5
2003-04-01 66.9
2003-07-01 67.2
2003-10-01 68.2
2004-01-01 68.4
2004-04-01 68.8
2004-07-01 68.9
2004-10-01 70.2
2005-01-01 69.5
2005-04-01 69.9
2005-07-01 69.2
2005-10-01 70.6
2006-01-01 71.1
2006-04-01 71.7
2006-07-01 71.4
2006-10-01 72.8
2007-01-01 73.1
2007-04-01 73.1
2007-07-01 72.9
2007-10-01 74.1
2008-01-01 74.6
2008-04-01 75
2008-07-01 74.8
2008-10-01 76.6
2009-01-01 77.1
2009-04-01 77.1
2009-07-01 76.7
2009-10-01 77.8
2010-01-01 78.4
2010-04-01 78.8
2010-07-01 78.4
2010-10-01 79.4
2011-01-01 79.6
2011-04-01 80
2011-07-01 79.2
2011-10-01 80.1
2012-01-01 81.1
2012-04-01 80.8
2012-07-01 80.7
2012-10-01 81.7
2013-01-01 81.9
2013-04-01 81.9
2013-07-01 81.3
2013-10-01 82.1
2014-01-01 82.1
2014-04-01 82.2
2014-07-01 81.3
2014-10-01 82.4
2015-01-01 82.1
2015-04-01 82.6
2015-07-01 81.1
2015-10-01 82.3
2016-01-01 82.3
2016-04-01 82.7
2016-07-01 81.9
2016-10-01 82.4
2017-01-01 82.3
2017-04-01 82.0
2017-07-01 81.5
2017-10-01 82.2
2018-01-01 81.9
2018-04-01 82.2
2018-07-01 81.3
