Quarterly Percent
2006-01-01 71.2
2006-04-01 73.6
2006-07-01 74.9
2006-10-01 73.6
2007-01-01 71.4
2007-04-01 73.9
2007-07-01 75.2
2007-10-01 73.2
2008-01-01 71.7
2008-04-01 74.2
2008-07-01 75.3
2008-10-01 74.1
2009-01-01 72.1
2009-04-01 74
2009-07-01 75.7
2009-10-01 74.3
2010-01-01 73.3
2010-04-01 75.1
2010-07-01 75.6
2010-10-01 74.2
2011-01-01 74.3
2011-04-01 76
2011-07-01 77
2011-10-01 75.2
2012-01-01 72.8
2012-04-01 75.3
2012-07-01 76.1
2012-10-01 75.8
2013-01-01 74.1
2013-04-01 76.2
2013-07-01 76.7
2013-10-01 75.3
2014-01-01 75.2
2014-04-01 77.1
2014-07-01 77.5
2014-10-01 76.3
2015-01-01 75.8
2015-04-01 77.2
2015-07-01 78.3
2015-10-01 76.8
2016-01-01 76.4
2016-04-01 78.1
2016-07-01 78.3
2016-10-01 77.5
2017-01-01 77.2
2017-04-01 78.3
2017-07-01 79.3
2017-10-01 77.9
2018-01-01 77.1
2018-04-01 78.4
