Quarterly Percent
1999-04-01 64.4
2000-04-01 61.4
2001-04-01 64.5
2002-04-01 62.3
2003-01-01 59.9
2003-04-01 59.9
2003-07-01 59.9
2003-10-01 59.9
2004-01-01 61.2
2004-04-01 61.2
2004-07-01 61.2
2004-10-01 61.2
2005-01-01 60.6
2005-04-01 60.6
2005-07-01 60.6
2005-10-01 60.6
2006-01-01 61.1
2006-04-01 61.1
2006-07-01 61.1
2006-10-01 61.1
2007-01-01 66.3
2007-04-01 60.3
2007-07-01 61.4
2007-10-01 66.6
2008-01-01 67.1
2008-04-01 55.5
2008-07-01 56.7
2008-10-01 62.2
2009-01-01 51.3
2009-04-01 45.9
2009-07-01 54.5
2009-10-01 57.5
2010-01-01 52.1
2010-04-01 48.4
2010-07-01 52.2
2010-10-01 52.1
2011-01-01 50.9
2011-04-01 54.8
2011-07-01 49
2011-10-01 51.6
2012-01-01 49.5
2012-04-01 55.1
2012-07-01 52.4
2012-10-01 49.7
2013-01-01 47.2
2013-04-01 48.7
2013-07-01 50.8
2013-10-01 51.5
2014-01-01 52.1
2014-04-01 45.3
2014-07-01 48.6
2014-10-01 45.7
2015-01-01 50.6
2015-04-01 51.2
2015-07-01 59.2
2015-10-01 57.2
2016-01-01 50.5
2016-04-01 49.3
2016-07-01 52.8
2016-10-01 51.0
2017-01-01 49.7
2017-04-01 52.0
2017-07-01 55.3
2017-10-01 55.5
2018-01-01 53.7
2018-04-01 54.2