Quarterly Percent
1998-01-01 44.5
1999-01-01 45.8
1999-04-01 48.4
1999-07-01 43.5
1999-10-01 43.5
2000-01-01 48.5
2000-04-01 50.9
2000-07-01 48.2
2000-10-01 50.2
2001-01-01 49.9
2001-04-01 51.1
2001-07-01 50
2001-10-01 50.1
2002-01-01 49
2002-04-01 50.5
2002-07-01 49
2002-10-01 50.3
2003-01-01 50.3
2003-04-01 50.3
2003-07-01 48.9
2003-10-01 51.4
2004-01-01 48.8
2004-04-01 48.2
2004-07-01 44.3
2004-10-01 46.9
2005-01-01 46.5
2005-04-01 47.4
2005-07-01 43.4
2005-10-01 46.3
2006-01-01 47.3
2006-04-01 47.9
2006-07-01 42.9
2006-10-01 45.7
2007-01-01 44.7
2007-04-01 45.8
2007-07-01 40.6
2007-10-01 44.8
2008-01-01 44.7
2008-04-01 46.7
2008-07-01 41.6
2008-10-01 42.4
2009-01-01 44.5
2009-04-01 45.2
2009-07-01 39.9
2009-10-01 45.6
2010-01-01 47.2
2010-04-01 48.3
2010-07-01 42.6
2010-10-01 46
2011-01-01 45.1
2011-04-01 47.6
2011-07-01 42.4
2011-10-01 45.6
2012-01-01 45.9
2012-04-01 48.1
2012-07-01 40.6
2012-10-01 43.9
2013-01-01 46.5
2013-04-01 46.6
2013-07-01 40.9
2013-10-01 44.8
2014-01-01 45.5
2014-04-01 45.8
2014-07-01 42.9
2014-10-01 44.3
2015-01-01 47.3
2015-04-01 47.6
2015-07-01 42.1
2015-10-01 46.4
2016-01-01 46.5
2016-04-01 47.9
2016-07-01 41.1
2016-10-01 46.0
2017-01-01 47.0
2017-04-01 46.8
2017-07-01 44.0
2017-10-01 47.3
2018-01-01 48.3
2018-04-01 48.3