Quarterly Percent
1999-04-01 51
2000-01-01 49.6
2000-04-01 51.4
2000-07-01 51.2
2000-10-01 50.7
2001-01-01 49.9
2001-04-01 50.3
2001-07-01 53.2
2001-10-01 51.9
2002-01-01 50
2002-04-01 51.8
2002-07-01 52.1
2002-10-01 53.3
2003-01-01 52.6
2003-04-01 52.2
2003-07-01 53.6
2003-10-01 53.9
2004-01-01 54.3
2004-04-01 54.2
2004-07-01 53.4
2004-10-01 53.5
2005-01-01 55.3
2005-04-01 56.8
2005-07-01 55.2
2005-10-01 56
2006-01-01 57.5
2006-04-01 58.8
2006-07-01 57.9
2006-10-01 58.2
2007-01-01 58
2007-04-01 59.4
2007-07-01 59.2
2007-10-01 58.2
2008-01-01 58.2
2008-04-01 58.4
2008-07-01 59.5
2008-10-01 59.1
2009-01-01 57.2
2009-04-01 55.7
2009-07-01 55.1
2009-10-01 54.9
2010-01-01 54.3
2010-04-01 54.3
2010-07-01 53.1
2010-10-01 54
2011-01-01 54.5
2011-04-01 56.2
2011-07-01 57.8
2011-10-01 56.7
2012-01-01 57.6
2012-04-01 58.8
2012-07-01 58.2
2012-10-01 56.9
2013-01-01 57.8
2013-04-01 59.9
2013-07-01 59.1
2013-10-01 58.5
2014-01-01 57.1
2014-04-01 59.5
2014-07-01 60.4
2014-10-01 59.5
2015-01-01 60.1
2015-04-01 61.1
2015-07-01 62.6
2015-10-01 61.6
2016-01-01 61.1
2016-04-01 64.0
2016-07-01 62.2
2016-10-01 61.0
2017-01-01 62.6
2017-04-01 63.2
2017-07-01 64.4
2017-10-01 64.6
2018-01-01 63.3
2018-04-01 64.2