Quarterly Percent
1999-04-01 41.1
1999-07-01 40.7
1999-10-01 41.5
2000-01-01 42.2
2000-04-01 42.6
2000-07-01 43.1
2000-10-01 43.5
2001-01-01 43.7
2001-04-01 43.9
2001-07-01 43.9
2001-10-01 44.4
2002-01-01 44.8
2002-04-01 45.6
2002-07-01 45.7
2002-10-01 46.3
2003-01-01 46.4
2003-04-01 47.2
2003-07-01 47.6
2003-10-01 47.7
2004-01-01 47.6
2004-04-01 48.2
2004-07-01 47.4
2004-10-01 48.2
2005-01-01 48.7
2005-04-01 49
2005-07-01 48.8
2005-10-01 49
2006-01-01 49.6
2006-04-01 50.1
2006-07-01 50.4
2006-10-01 50.5
2007-01-01 50.2
2007-04-01 49.9
2007-07-01 49.6
2007-10-01 50.1
2008-01-01 50
2008-04-01 50
2008-07-01 50.0
2008-10-01 50.8
2009-01-01 50.6
2009-04-01 50.8
2009-07-01 50.5
2009-10-01 50.7
2010-01-01 51.3
2010-04-01 50.6
2010-07-01 51.7
2010-10-01 50.9
2011-01-01 51.2
2011-04-01 51
2011-07-01 51.6
2011-10-01 51.3
2012-01-01 52.4
2012-04-01 53
2012-07-01 52.7
2012-10-01 53.8
2013-01-01 54.5
2013-04-01 55.1
2013-07-01 55.5
2013-10-01 56.0
2014-01-01 56.3
2014-04-01 56.4
2014-07-01 56.0
2014-10-01 56.9
2015-01-01 57.4
2015-04-01 57.1
2015-07-01 58.0
2015-10-01 58.3
2016-01-01 58.9
2016-04-01 59.7
2016-07-01 58.9
2016-10-01 59.5
2017-01-01 60.3
2017-04-01 60.4
2017-07-01 61.1
2017-10-01 61.8
2018-01-01 62.3
2018-04-01 62.3