Quarterly Percent
1999-01-01 53.5
1999-04-01 53.6
1999-07-01 51.5
1999-10-01 52.5
2000-01-01 53.5
2000-04-01 53.3
2000-07-01 49.9
2000-10-01 51.2
2001-01-01 53.4
2001-04-01 52.6
2001-07-01 49.8
2001-10-01 51.3
2002-01-01 51.5
2002-04-01 51.4
2002-07-01 49.4
2002-10-01 51
2003-01-01 51.4
2003-04-01 50.7
2003-07-01 48.3
2003-10-01 49.9
2004-01-01 50.4
2004-04-01 50.2
2004-07-01 47.8
2004-10-01 50
2005-01-01 48.4
2005-04-01 47.9
2005-07-01 45.3
2005-10-01 48.2
2006-01-01 49.2
2006-04-01 48.3
2006-07-01 45.4
2006-10-01 48.3
2007-01-01 48.9
2007-04-01 47.6
2007-07-01 45.7
2007-10-01 49.2
2008-01-01 49.3
2008-04-01 49
2008-07-01 45.9
2008-10-01 49.9
2009-01-01 51.1
2009-04-01 51.3
2009-07-01 50.6
2009-10-01 54.2
2010-01-01 55.2
2010-04-01 54.1
2010-07-01 54
2010-10-01 56.8
2011-01-01 57.8
2011-04-01 57.5
2011-07-01 55.3
2011-10-01 59.2
2012-01-01 60.4
2012-04-01 59.6
2012-07-01 57.5
2012-10-01 61.1
2013-01-01 60.5
2013-04-01 60.4
2013-07-01 59.1
2013-10-01 61.7
2014-01-01 62.8
2014-04-01 62.8
2014-07-01 61.1
2014-10-01 64
2015-01-01 64.3
2015-04-01 64.1
2015-07-01 62.0
2015-10-01 64.9
2016-01-01 65.8
2016-04-01 64.8
2016-07-01 64.2
2016-10-01 66.2
2017-01-01 66.4
2017-04-01 65.4
2017-07-01 62.0
2017-10-01 65.8
2018-01-01 66.5
2018-04-01 64.7
2018-07-01 62.6