Quarterly Percent
1999-01-01 52.4
2000-01-01 49.7
2000-04-01 50.3
2000-07-01 50.6
2000-10-01 49.9
2001-01-01 48.7
2001-04-01 49
2001-07-01 49.2
2001-10-01 48.1
2002-01-01 46.8
2002-04-01 47.2
2002-07-01 47.3
2002-10-01 46.8
2003-01-01 45.9
2003-04-01 46.7
2003-07-01 47.1
2003-10-01 46.9
2004-01-01 46
2004-04-01 46.8
2004-07-01 47.7
2004-10-01 47.9
2005-01-01 46.9
2005-04-01 47.7
2005-07-01 49.2
2005-10-01 49
2006-01-01 47.9
2006-04-01 49.3
2006-07-01 50.8
2006-10-01 50.7
2007-01-01 50.4
2007-04-01 51.9
2007-07-01 52.8
2007-10-01 53
2008-01-01 53
2008-04-01 53.9
2008-07-01 54.9
2008-10-01 54.9
2009-01-01 53.9
2009-04-01 54.3
2009-07-01 54.9
2009-10-01 54.4
2010-01-01 52.9
2010-04-01 54
2010-07-01 54.7
2010-10-01 54.2
2011-01-01 53.5
2011-04-01 54.3
2011-07-01 54.7
2011-10-01 54.4
2012-01-01 53.7
2012-04-01 54.5
2012-07-01 54.8
2012-10-01 54.6
2013-01-01 53.4
2013-04-01 54.2
2013-07-01 55.1
2013-10-01 55
2014-01-01 54.5
2014-04-01 55.3
2014-07-01 56.4
2014-10-01 56.3
2015-01-01 55.6
2015-04-01 56.1
2015-07-01 57.1
2015-10-01 57.2
2016-01-01 56.9
2016-04-01 57.5
2016-07-01 57.8
2016-10-01 58.0
2017-01-01 58.1
2017-04-01 58.7
2017-07-01 58.9
2017-10-01 58.6
2018-01-01 58.5
2018-04-01 59.4