Quarterly Percent
1999-04-01 74.9
2000-04-01 80.5
2001-04-01 79.5
2002-04-01 70.4
2003-01-01 67.1
2003-04-01 76.3
2003-07-01 80.3
2003-10-01 62.1
2004-01-01 63.8
2004-04-01 75.7
2004-07-01 79.4
2004-10-01 69.2
2005-01-01 73.4
2005-04-01 83.3
2005-07-01 79.3
2005-10-01 76.2
2006-01-01 76.5
2006-04-01 88
2006-07-01 83.5
2006-10-01 73.1
2007-01-01 75.9
2007-04-01 85
2007-07-01 82.2
2007-10-01 74.7
2008-01-01 75.6
2008-04-01 83.2
2008-07-01 82
2008-10-01 76.9
2009-01-01 68.1
2009-04-01 81.4
2009-07-01 79.5
2009-10-01 73
2010-01-01 66.8
2010-04-01 87.4
2010-07-01 78.4
2010-10-01 71.8
2011-01-01 69.6
2011-04-01 88.5
2011-07-01 74.2
2011-10-01 65.8
2012-01-01 72.2
2012-04-01 84.1
2012-07-01 80.5
2012-10-01 75.2
2013-01-01 73.5
2013-04-01 87.7
2013-07-01 84.3
2013-10-01 80.4
2014-01-01 76.9
2014-04-01 84.0
2014-07-01 82.0
2014-10-01 72.2
2015-01-01 77.6
2015-04-01 87.9
2015-07-01 82.8
2015-10-01 79.5
2016-01-01 77.6
2016-04-01 92.3
2016-07-01 84.8
2016-10-01 79.1
2017-01-01 82.4
2017-04-01 91.1
2017-07-01 80.2
2017-10-01 75.6
2018-01-01 76.2
2018-04-01 87.3