Quarterly Percent
1999-01-01 53
1999-04-01 54.2
1999-07-01 52.4
1999-10-01 53.2
2000-01-01 53.9
2000-04-01 55.2
2000-07-01 53.3
2000-10-01 53.7
2001-01-01 54.5
2001-04-01 54.7
2001-07-01 53.6
2001-10-01 55.1
2002-01-01 56.3
2002-04-01 57.2
2002-07-01 56.4
2002-10-01 56.6
2003-01-01 58.3
2003-04-01 59.3
2003-07-01 58.6
2003-10-01 59.5
2004-01-01 60.2
2004-04-01 60.9
2004-07-01 60.5
2004-10-01 61.3
2005-01-01 62.7
2005-04-01 64
2005-07-01 63.5
2005-10-01 63.1
2006-01-01 64.5
2006-04-01 65.1
2006-07-01 64
2006-10-01 64.9
2007-01-01 66
2007-04-01 66.2
2007-07-01 64.5
2007-10-01 64.8
2008-01-01 66.3
2008-04-01 68
2008-07-01 67.7
2008-10-01 68.4
2009-01-01 69.6
2009-04-01 69.9
2009-07-01 67.5
2009-10-01 67.3
2010-01-01 69.4
2010-04-01 69.8
2010-07-01 68.2
2010-10-01 68.3
2011-01-01 69.6
2011-04-01 69.9
2011-07-01 70.4
2011-10-01 69.8
2012-01-01 69.8
2012-04-01 70.6
2012-07-01 68.7
2012-10-01 68.8
2013-01-01 68.5
2013-04-01 69.5
2013-07-01 69.1
2013-10-01 69.8
2014-01-01 69.2
2014-04-01 70.1
2014-07-01 68.4
2014-10-01 68.4
2015-01-01 68.0
2015-04-01 69.5
2015-07-01 67.5
2015-10-01 68.0
2016-01-01 68.5
2016-04-01 69.5
2016-07-01 66.7
2016-10-01 65.7
2017-01-01 66.6
2017-04-01 67.2
2017-07-01 67.1
2017-10-01 66.4
2018-01-01 68.0
2018-04-01 68.0