Quarterly Percent
2006-01-01 66.1
2006-04-01 64.4
2006-07-01 61.5
2006-10-01 62.9
2007-01-01 65.5
2007-04-01 63.7
2007-07-01 60.7
2007-10-01 64.1
2008-01-01 64.9
2008-04-01 63.6
2008-07-01 60.6
2008-10-01 62.3
2009-01-01 65.4
2009-04-01 63.1
2009-07-01 59
2009-10-01 62.7
2010-01-01 64.6
2010-04-01 63
2010-07-01 59.8
2010-10-01 63.1
2011-01-01 63.7
2011-04-01 61.7
2011-07-01 58.5
2011-10-01 62.2
2012-01-01 65.5
2012-04-01 62.8
2012-07-01 60.4
2012-10-01 61.9
2013-01-01 63.5
2013-04-01 60.9
2013-07-01 57.8
2013-10-01 62.6
2014-01-01 61.7
2014-04-01 58.7
2014-07-01 56.5
2014-10-01 60
2015-01-01 61.0
2015-04-01 58.7
2015-07-01 54.2
2015-10-01 59.0
2016-01-01 60.3
2016-04-01 57.3
2016-07-01 55.0
2016-10-01 58.0
2017-01-01 59.3
2017-04-01 56.8
2017-07-01 53.5
2017-10-01 57.6
2018-01-01 59.0
2018-04-01 56.9
