Quarterly Percent
2000-04-01 50.6
2001-04-01 50.8
2002-04-01 51.5
2003-04-01 53.2
2004-04-01 53.9
2005-01-01 54.6
2005-04-01 55.1
2005-07-01 55.4
2005-10-01 55.8
2006-01-01 55.3
2006-04-01 55.9
2006-07-01 56.6
2006-10-01 56.5
2007-01-01 56.1
2007-04-01 56.9
2007-07-01 57.2
2007-10-01 57.0
2008-01-01 57.0
2008-04-01 57.8
2008-07-01 57.9
2008-10-01 58.1
2009-01-01 57.9
2009-04-01 58.6
2009-07-01 58.5
2009-10-01 58.6
2010-01-01 58.4
2010-04-01 58.8
2010-07-01 58.8
2010-10-01 58.8
2011-01-01 58.8
2011-04-01 59.3
2011-07-01 59.1
2011-10-01 59.7
2012-01-01 59.8
2012-04-01 60.9
2012-07-01 61.4
2012-10-01 61.7
2013-01-01 61.5
2013-04-01 62.3
2013-07-01 63.0
2013-10-01 63.3
2014-01-01 63.2
2014-04-01 63.6
2014-07-01 64.1
2014-10-01 64.6
2015-01-01 64.2
2015-04-01 64.8
2015-07-01 65.4
2015-10-01 65.7
2016-01-01 65.9
2016-04-01 66.5
2016-07-01 66.8
2016-10-01 67.1
2017-01-01 66.8
2017-04-01 67.8
2017-07-01 68.1
2017-10-01 68.5
2018-01-01 68.3
2018-04-01 68.9
