Quarterly Percent
2000-04-01 62.7
2001-04-01 62.6
2002-04-01 61.1
2003-04-01 59.4
2004-04-01 58.4
2005-01-01 56.8
2005-04-01 56.2
2005-07-01 56.3
2005-10-01 55.7
2006-01-01 55.6
2006-04-01 55.2
2006-07-01 55
2006-10-01 54.5
2007-01-01 54.4
2007-04-01 53.6
2007-07-01 53.8
2007-10-01 53.6
2008-01-01 53.7
2008-04-01 52.8
2008-07-01 52.7
2008-10-01 52.4
2009-01-01 52.1
2009-04-01 51.1
2009-07-01 51.7
2009-10-01 51.2
2010-01-01 50.9
2010-04-01 50.7
2010-07-01 50.6
2010-10-01 50.3
2011-01-01 50.1
2011-04-01 49.3
2011-07-01 49.3
2011-10-01 48.6
2012-01-01 48.3
2012-04-01 47.3
2012-07-01 46.9
2012-10-01 46.5
2013-01-01 46.3
2013-04-01 45.6
2013-07-01 45
2013-10-01 44.6
2014-01-01 44.4
2014-04-01 43.8
2014-07-01 43.4
2014-10-01 42.8
2015-01-01 42.7
2015-04-01 42.0
2015-07-01 41.8
2015-10-01 41.5
2016-01-01 40.9
2016-04-01 40.2
2016-07-01 40.0
2016-10-01 39.7
2017-01-01 39.6
2017-04-01 38.7
2017-07-01 38.6
2017-10-01 38.0
2018-01-01 37.9
2018-04-01 37.5
