Quarterly Percent
1999-01-01 32
2000-01-01 32.9
2001-01-01 34.9
2002-01-01 38.1
2003-01-01 39.6
2003-04-01 40.6
2003-07-01 41.5
2003-10-01 41.8
2004-01-01 42.4
2004-04-01 41.6
2004-07-01 41.6
2004-10-01 41
2005-01-01 41.4
2005-04-01 41.9
2005-07-01 41.7
2005-10-01 41.1
2006-01-01 40.8
2006-04-01 41
2006-07-01 40.4
2006-10-01 40.0
2007-01-01 40.2
2007-04-01 41
2007-07-01 40.7
2007-10-01 40.1
2008-01-01 39.9
2008-04-01 40.7
2008-07-01 40.7
2008-10-01 41
2009-01-01 40.8
2009-04-01 41.8
2009-07-01 41.7
2009-10-01 41.7
2010-01-01 41.3
2010-04-01 42.4
2010-07-01 42.7
2010-10-01 42.6
2011-01-01 42.8
2011-04-01 43.8
2011-07-01 44.3
2011-10-01 45.3
2012-01-01 45.9
2012-04-01 47.1
2012-07-01 48.3
2012-10-01 48.9
2013-01-01 48.1
2013-04-01 48.5
2013-07-01 48.6
2013-10-01 48.4
2014-01-01 48.4
2014-04-01 48.4
2014-07-01 48.9
2014-10-01 49.7
2015-01-01 50.1
2015-04-01 50.8
2015-07-01 51.0
2015-10-01 50.9
2016-01-01 51.0
2016-04-01 51.4
2016-07-01 52.1
2016-10-01 51.8
2017-01-01 51.6
2017-04-01 53.0
2017-07-01 52.6
2017-10-01 53.8
2018-01-01 53.2
2018-04-01 54.2
