Quarterly Percent
1999-01-01 35
1999-04-01 34.9
1999-07-01 35
1999-10-01 35
2000-01-01 35.6
2000-04-01 36.8
2000-07-01 37.6
2000-10-01 38.1
2001-01-01 38.9
2001-04-01 39.1
2001-07-01 39.3
2001-10-01 39.6
2002-01-01 39.4
2002-04-01 39.9
2002-07-01 39.8
2002-10-01 40.4
2003-01-01 40.5
2003-04-01 40.9
2003-07-01 40.7
2003-10-01 41.3
2004-01-01 41.2
2004-04-01 41
2004-07-01 41.1
2004-10-01 41.6
2005-01-01 42.3
2005-04-01 43
2005-07-01 43.1
2005-10-01 43.9
2006-01-01 44.2
2006-04-01 44.2
2006-07-01 43.7
2006-10-01 44.3
2007-01-01 44
2007-04-01 44.7
2007-07-01 44.5
2007-10-01 44.9
2008-01-01 45.2
2008-04-01 45.8
2008-07-01 45.5
2008-10-01 45.4
2009-01-01 44.5
2009-04-01 44.4
2009-07-01 43.6
2009-10-01 43.4
2010-01-01 43.3
2010-04-01 43.4
2010-07-01 43.7
2010-10-01 43.8
2011-01-01 44.1
2011-04-01 44.9
2011-07-01 44.6
2011-10-01 44.3
2012-01-01 43.6
2012-04-01 44.3
2012-07-01 44.2
2012-10-01 43.4
2013-01-01 42.6
2013-04-01 43.1
2013-07-01 43.6
2013-10-01 43.7
2014-01-01 43.3
2014-04-01 44
2014-07-01 44.6
2014-10-01 45.3
2015-01-01 45.9
2015-04-01 46.7
2015-07-01 47.0
2015-10-01 48.0
2016-01-01 48.6
2016-04-01 48.8
2016-07-01 49.5
2016-10-01 49.4
2017-01-01 49.7
2017-04-01 50.5
2017-07-01 50.8
2017-10-01 51.0
2018-01-01 50.9
2018-04-01 52.0
2018-07-01 52.7