Quarterly Percent
1999-01-01 58.1
1999-04-01 56.9
1999-07-01 56.9
1999-10-01 56.7
2000-01-01 54.7
2000-04-01 54.7
2000-07-01 55.8
2000-10-01 56
2001-01-01 54.2
2001-04-01 55
2001-07-01 55.6
2001-10-01 55.9
2002-01-01 54.9
2002-04-01 55.1
2002-07-01 55.8
2002-10-01 56.3
2003-01-01 55.1
2003-04-01 56.6
2003-07-01 57.3
2003-10-01 56.6
2004-01-01 55.1
2004-04-01 56.2
2004-07-01 57.3
2004-10-01 57.2
2005-01-01 56.5
2005-04-01 57.3
2005-07-01 58.4
2005-10-01 59
2006-01-01 58.9
2006-04-01 59.8
2006-07-01 60.3
2006-10-01 60.5
2007-01-01 60.1
2007-04-01 60.6
2007-07-01 61.5
2007-10-01 62.1
2008-01-01 61.6
2008-04-01 61.9
2008-07-01 63.4
2008-10-01 63.4
2009-01-01 61.4
2009-04-01 60.7
2009-07-01 60.3
2009-10-01 59
2010-01-01 57.5
2010-04-01 58.1
2010-07-01 58.5
2010-10-01 58.7
2011-01-01 58.1
2011-04-01 58.9
2011-07-01 59.2
2011-10-01 58.9
2012-01-01 58.9
2012-04-01 59.1
2012-07-01 59.6
2012-10-01 58.8
2013-01-01 58.8
2013-04-01 58.8
2013-07-01 58.7
2013-10-01 58.1
2014-01-01 58.3
2014-04-01 59.2
2014-07-01 60
2014-10-01 60.3
2015-01-01 60.0
2015-04-01 60.8
2015-07-01 61.2
2015-10-01 61.5
2016-01-01 61.3
2016-04-01 62.3
2016-07-01 62.4
2016-10-01 62.4
2017-01-01 61.9
2017-04-01 62.4
2017-07-01 62.5
2017-10-01 62.7
2018-01-01 62.7
2018-04-01 63.6