Quarterly Percent
1999-04-01 55.8
2000-01-01 53
2000-04-01 56.5
2000-07-01 58.6
2000-10-01 55.4
2001-01-01 51.2
2001-04-01 56.9
2001-07-01 59
2001-10-01 57
2002-01-01 54.8
2002-04-01 57.9
2002-07-01 60.9
2002-10-01 58
2003-01-01 53.4
2003-04-01 56
2003-07-01 58.5
2003-10-01 56.4
2004-01-01 53.5
2004-04-01 56.9
2004-07-01 58.7
2004-10-01 54.8
2005-01-01 50.2
2005-04-01 53.6
2005-07-01 57.2
2005-10-01 53.9
2006-01-01 50.4
2006-04-01 52.6
2006-07-01 55.9
2006-10-01 52.9
2007-01-01 51.8
2007-04-01 55.8
2007-07-01 58.8
2007-10-01 58.3
2008-01-01 58.9
2008-04-01 59.2
2008-07-01 58.9
2008-10-01 55.5
2009-01-01 55.2
2009-04-01 55
2009-07-01 54.9
2009-10-01 52.2
2010-01-01 51.9
2010-04-01 53.3
2010-07-01 52.9
2010-10-01 52.3
2011-01-01 51.1
2011-04-01 52.1
2011-07-01 53.9
2011-10-01 51.9
2012-01-01 52.4
2012-04-01 53.9
2012-07-01 55
2012-10-01 54
2013-01-01 54
2013-04-01 55.1
2013-07-01 53.8
2013-10-01 52.3
2014-01-01 50.8
2014-04-01 52.4
2014-07-01 52.6
2014-10-01 52.7
2015-01-01 50.5
2015-04-01 53.9
2015-07-01 53.3
2015-10-01 49.4
2016-01-01 50.0
2016-04-01 49.8
2016-07-01 51.6
2016-10-01 48.8
2017-01-01 46.9
2017-04-01 49.4
2017-07-01 50.9
2017-10-01 49.3
2018-01-01 48.6
2018-04-01 50.4