Quarterly Percent
1998-01-01 41.5
1999-01-01 41.6
1999-04-01 43.6
1999-07-01 39
1999-10-01 38.8
2000-01-01 43.9
2000-04-01 46.2
2000-07-01 43.3
2000-10-01 44.9
2001-01-01 45.3
2001-04-01 46.5
2001-07-01 44.7
2001-10-01 45.5
2002-01-01 44.3
2002-04-01 46
2002-07-01 44.2
2002-10-01 45.3
2003-01-01 45.3
2003-04-01 45.6
2003-07-01 43.9
2003-10-01 45.2
2004-01-01 44.3
2004-04-01 45
2004-07-01 41
2004-10-01 42.9
2005-01-01 43.8
2005-04-01 43.4
2005-07-01 38.6
2005-10-01 42.2
2006-01-01 43.9
2006-04-01 44.1
2006-07-01 38.2
2006-10-01 42
2007-01-01 42.4
2007-04-01 42.1
2007-07-01 36.6
2007-10-01 41.2
2008-01-01 41.7
2008-04-01 43
2008-07-01 37.7
2008-10-01 39.5
2009-01-01 41.8
2009-04-01 42.4
2009-07-01 36.9
2009-10-01 40.9
2010-01-01 43
2010-04-01 44.3
2010-07-01 38.7
2010-10-01 40.9
2011-01-01 41.7
2011-04-01 42.4
2011-07-01 37.7
2011-10-01 41.4
2012-01-01 42.5
2012-04-01 42.4
2012-07-01 37.2
2012-10-01 40.9
2013-01-01 42.6
2013-04-01 42.5
2013-07-01 38.1
2013-10-01 41.7
2014-01-01 42.4
2014-04-01 43.9
2014-07-01 39.5
2014-10-01 42.1
2015-01-01 43.9
2015-04-01 44.2
2015-07-01 38.8
2015-10-01 43.3
2016-01-01 44.1
2016-04-01 44.7
2016-07-01 38.3
2016-10-01 43.0
2017-01-01 44.8
2017-04-01 45.1
2017-07-01 41.5
2017-10-01 44.3
2018-01-01 45.8
2018-04-01 44.9