Quarterly Percent
1999-01-01 62.2
1999-04-01 59.6
1999-07-01 55.1
1999-10-01 58
2000-01-01 63.1
2000-04-01 62.7
2000-07-01 56.6
2000-10-01 61
2001-01-01 63.7
2001-04-01 64
2001-07-01 60
2001-10-01 63.7
2002-01-01 62.9
2002-04-01 63.4
2002-07-01 61.8
2002-10-01 65.5
2003-01-01 65.8
2003-04-01 66.2
2003-07-01 64.5
2003-10-01 62.6
2004-01-01 61.7
2004-04-01 60.7
2004-07-01 56.5
2004-10-01 59.7
2005-01-01 59.7
2005-04-01 63.5
2005-07-01 55.8
2005-10-01 58.9
2006-01-01 60.9
2006-04-01 58.7
2006-07-01 56
2006-10-01 61.9
2007-01-01 61
2007-04-01 59.6
2007-07-01 52.9
2007-10-01 59.2
2008-01-01 60.6
2008-04-01 58.9
2008-07-01 50.5
2008-10-01 58.5
2009-01-01 63.5
2009-04-01 60.4
2009-07-01 52.5
2009-10-01 60.2
2010-01-01 60.8
2010-04-01 60.9
2010-07-01 58.1
2010-10-01 60.5
2011-01-01 64.8
2011-04-01 64.4
2011-07-01 59.8
2011-10-01 61.4
2012-01-01 65.5
2012-04-01 68.8
2012-07-01 63
2012-10-01 65.2
2013-01-01 67.8
2013-04-01 66.1
2013-07-01 62.3
2013-10-01 68.4
2014-01-01 69.7
2014-04-01 67
2014-07-01 63.7
2014-10-01 65.2
2015-01-01 67.8
2015-04-01 64.5
2015-07-01 61.2
2015-10-01 65.1
2016-01-01 68.7
2016-04-01 67.7
2016-07-01 63.2
2016-10-01 65.5
2017-01-01 64.2
2017-04-01 61.7
2017-07-01 55.6
2017-10-01 61.9
2018-01-01 62.1
2018-04-01 59.7
