Quarterly Percent
2000-04-01 51.5
2001-04-01 51.5
2002-04-01 50.0
2003-04-01 48.5
2004-04-01 47.6
2005-01-01 46.7
2005-04-01 46.3
2005-07-01 46.2
2005-10-01 45.7
2006-01-01 46.1
2006-04-01 45.5
2006-07-01 45.3
2006-10-01 45
2007-01-01 45
2007-04-01 44.4
2007-07-01 44.1
2007-10-01 44.3
2008-01-01 44.4
2008-04-01 43.5
2008-07-01 43.5
2008-10-01 43.1
2009-01-01 43.2
2009-04-01 42.3
2009-07-01 42.8
2009-10-01 42.3
2010-01-01 42.2
2010-04-01 41.8
2010-07-01 42.0
2010-10-01 41.6
2011-01-01 41.8
2011-04-01 41.3
2011-07-01 41.4
2011-10-01 40.4
2012-01-01 40.4
2012-04-01 39.5
2012-07-01 39.0
2012-10-01 38.4
2013-01-01 38.6
2013-04-01 37.8
2013-07-01 37.3
2013-10-01 36.8
2014-01-01 36.8
2014-04-01 36.5
2014-07-01 36.2
2014-10-01 35.4
2015-01-01 35.6
2015-04-01 34.9
2015-07-01 34.5
2015-10-01 34.2
2016-01-01 33.7
2016-04-01 33.1
2016-07-01 32.9
2016-10-01 32.7
2017-01-01 33.0
2017-04-01 32.0
2017-07-01 31.7
2017-10-01 31.0
2018-01-01 31.4
2018-04-01 30.9
