Quarterly Percent
2006-01-01 20.2
2006-04-01 24.1
2006-07-01 24
2006-10-01 22.7
2007-01-01 21.5
2007-04-01 24.3
2007-07-01 23.7
2007-10-01 21.6
2008-01-01 21.1
2008-04-01 24.9
2008-07-01 24.8
2008-10-01 23.2
2009-01-01 21.6
2009-04-01 25
2009-07-01 25.5
2009-10-01 24.8
2010-01-01 24.2
2010-04-01 27.3
2010-07-01 27
2010-10-01 26.2
2011-01-01 25.9
2011-04-01 28.9
2011-07-01 28.9
2011-10-01 27.6
2012-01-01 26.6
2012-04-01 29.9
2012-07-01 29.2
2012-10-01 29.2
2013-01-01 28.4
2013-04-01 31.1
2013-07-01 30
2013-10-01 29.1
2014-01-01 28.1
2014-04-01 30.6
2014-07-01 29.9
2014-10-01 29.4
2015-01-01 28.9
2015-04-01 31.5
2015-07-01 30.9
2015-10-01 30.5
2016-01-01 30.2
2016-04-01 32.5
2016-07-01 31.3
2016-10-01 30.6
2017-01-01 30.7
2017-04-01 32.9
2017-07-01 32.4
2017-10-01 32.7
2018-01-01 32.2
2018-04-01 33.7
