Quarterly Percent
1999-01-01 57.5
2000-01-01 54.6
2000-04-01 55.1
2000-07-01 55.5
2000-10-01 54.7
2001-01-01 53.3
2001-04-01 53.7
2001-07-01 53.8
2001-10-01 52.6
2002-01-01 51.3
2002-04-01 51.7
2002-07-01 51.7
2002-10-01 51.2
2003-01-01 50.4
2003-04-01 51.4
2003-07-01 51.6
2003-10-01 51.4
2004-01-01 50.5
2004-04-01 51.4
2004-07-01 52.3
2004-10-01 52.4
2005-01-01 51.5
2005-04-01 52.2
2005-07-01 53.7
2005-10-01 53.7
2006-01-01 52.6
2006-04-01 53.9
2006-07-01 55.6
2006-10-01 55.7
2007-01-01 55.4
2007-04-01 56.8
2007-07-01 57.8
2007-10-01 58.1
2008-01-01 58
2008-04-01 58.9
2008-07-01 60
2008-10-01 60
2009-01-01 58.9
2009-04-01 59.3
2009-07-01 59.9
2009-10-01 59.4
2010-01-01 57.9
2010-04-01 59
2010-07-01 59.7
2010-10-01 59.2
2011-01-01 58.5
2011-04-01 59.4
2011-07-01 59.8
2011-10-01 59.5
2012-01-01 58.8
2012-04-01 59.7
2012-07-01 60.2
2012-10-01 60
2013-01-01 58.7
2013-04-01 59.8
2013-07-01 60.7
2013-10-01 60.8
2014-01-01 60.3
2014-04-01 61.3
2014-07-01 62.5
2014-10-01 62.6
2015-01-01 61.9
2015-04-01 62.6
2015-07-01 63.5
2015-10-01 63.7
2016-01-01 63.7
2016-04-01 64.3
2016-07-01 64.9
2016-10-01 65.1
2017-01-01 65.4
2017-04-01 66.2
2017-07-01 66.5
2017-10-01 66.4
2018-01-01 66.6
2018-04-01 67.7
