Quarterly Percent
1999-04-01 73.5
2000-04-01 72.4
2001-04-01 75.1
2002-04-01 72.1
2003-01-01 69.3
2003-04-01 69.3
2003-07-01 69.3
2003-10-01 69.3
2004-01-01 69.1
2004-04-01 69.1
2004-07-01 69.1
2004-10-01 69.1
2005-01-01 67.6
2005-04-01 67.6
2005-07-01 67.6
2005-10-01 67.6
2006-01-01 66.4
2006-04-01 66.4
2006-07-01 66.4
2006-10-01 66.4
2007-01-01 69
2007-04-01 66.5
2007-07-01 64.6
2007-10-01 69.2
2008-01-01 67.5
2008-04-01 61.4
2008-07-01 62.7
2008-10-01 68.2
2009-01-01 61.4
2009-04-01 56.7
2009-07-01 61.8
2009-10-01 62.6
2010-01-01 60.9
2010-04-01 56.7
2010-07-01 61
2010-10-01 59.2
2011-01-01 59.1
2011-04-01 61
2011-07-01 56.7
2011-10-01 61.6
2012-01-01 57.3
2012-04-01 59.6
2012-07-01 57
2012-10-01 58.6
2013-01-01 58.3
2013-04-01 53.5
2013-07-01 58.5
2013-10-01 59.9
2014-01-01 56.7
2014-04-01 54.9
2014-07-01 55.6
2014-10-01 55.1
2015-01-01 56.0
2015-04-01 58.0
2015-07-01 64.0
2015-10-01 60.7
2016-01-01 57.1
2016-04-01 58.3
2016-07-01 60.1
2016-10-01 57.9
2017-01-01 57.8
2017-04-01 59.0
2017-07-01 59.6
2017-10-01 59.3
2018-01-01 59.0
2018-04-01 59.0