Quarterly Percent
2000-04-01 73.4
2001-04-01 73.1
2002-04-01 71.8
2003-04-01 69.8
2004-04-01 68.7
2005-01-01 66.4
2005-04-01 65.7
2005-07-01 65.9
2005-10-01 65.2
2006-01-01 64.7
2006-04-01 64.3
2006-07-01 64.3
2006-10-01 63.7
2007-01-01 63.4
2007-04-01 62.3
2007-07-01 62.9
2007-10-01 62.4
2008-01-01 62.6
2008-04-01 61.6
2008-07-01 61.6
2008-10-01 61.2
2009-01-01 60.6
2009-04-01 59.6
2009-07-01 60.2
2009-10-01 59.7
2010-01-01 59.2
2010-04-01 59.1
2010-07-01 58.9
2010-10-01 58.6
2011-01-01 57.9
2011-04-01 57.0
2011-07-01 56.8
2011-10-01 56.4
2012-01-01 55.7
2012-04-01 54.7
2012-07-01 54.3
2012-10-01 54.1
2013-01-01 53.5
2013-04-01 53.0
2013-07-01 52.3
2013-10-01 51.9
2014-01-01 51.5
2014-04-01 50.6
2014-07-01 50.3
2014-10-01 49.8
2015-01-01 49.5
2015-04-01 48.8
2015-07-01 48.8
2015-10-01 48.4
2016-01-01 47.6
2016-04-01 46.8
2016-07-01 46.8
2016-10-01 46.4
2017-01-01 45.8
2017-04-01 45.1
2017-07-01 45.2
2017-10-01 44.5
2018-01-01 44.1
2018-04-01 43.8