Quarterly Percent
1999-01-01 48.5
1999-04-01 49.1
1999-07-01 49.6
1999-10-01 49.8
2000-01-01 49.3
2000-04-01 49.7
2000-07-01 50.3
2000-10-01 50.6
2001-01-01 49.6
2001-04-01 49.6
2001-07-01 50.1
2001-10-01 49.7
2002-01-01 49.4
2002-04-01 49.8
2002-07-01 50.1
2002-10-01 50.1
2003-01-01 49.8
2003-04-01 50.6
2003-07-01 51.1
2003-10-01 51.1
2004-01-01 50.4
2004-04-01 50.4
2004-07-01 50.6
2004-10-01 50.6
2005-01-01 50.1
2005-04-01 50.4
2005-07-01 50.9
2005-10-01 50.7
2006-01-01 50.4
2006-04-01 51
2006-07-01 51.1
2006-10-01 51.1
2007-01-01 50.5
2007-04-01 50.8
2007-07-01 50.9
2007-10-01 50.4
2008-01-01 49.6
2008-04-01 50
2008-07-01 50.6
2008-10-01 50
2009-01-01 48.6
2009-04-01 49
2009-07-01 48.8
2009-10-01 48.8
2010-01-01 48
2010-04-01 48.7
2010-07-01 49.2
2010-10-01 49
2011-01-01 48.1
2011-04-01 49.1
2011-07-01 49.7
2011-10-01 49.6
2012-01-01 48.9
2012-04-01 50
2012-07-01 50.9
2012-10-01 50.7
2013-01-01 49.5
2013-04-01 51.1
2013-07-01 51.8
2013-10-01 52.2
2014-01-01 53.2
2014-04-01 53.8
2014-07-01 54.8
2014-10-01 54.8
2015-01-01 54.5
2015-04-01 55.7
2015-07-01 56.6
2015-10-01 56.6
2016-01-01 56.7
2016-04-01 57.8
2016-07-01 58.5
2016-10-01 58.8
2017-01-01 58.4
2017-04-01 59.2
2017-07-01 59.7
2017-10-01 59.8
2018-01-01 59.6
2018-04-01 60.2
