Quarterly Percent
1999-04-01 79.4
2000-01-01 75.6
2000-04-01 78.3
2000-07-01 75.2
2000-10-01 75.8
2001-01-01 77.9
2001-04-01 77.7
2001-07-01 76.5
2001-10-01 77.9
2002-01-01 77
2002-04-01 79.3
2002-07-01 79
2002-10-01 75.4
2003-01-01 76.6
2003-04-01 79
2003-07-01 80.5
2003-10-01 80.6
2004-01-01 79.2
2004-04-01 80
2004-07-01 80.2
2004-10-01 79.7
2005-01-01 78.2
2005-04-01 79.7
2005-07-01 83.3
2005-10-01 81.8
2006-01-01 84.6
2006-04-01 87.9
2006-07-01 88.3
2006-10-01 88.6
2007-01-01 89.1
2007-04-01 89.5
2007-07-01 90.4
2007-10-01 89.4
2008-01-01 89.7
2008-04-01 89.2
2008-07-01 87.6
2008-10-01 86.4
2009-01-01 79.4
2009-04-01 77.5
2009-07-01 78.6
2009-10-01 74.1
2010-01-01 69.9
2010-04-01 73.2
2010-07-01 79
2010-10-01 81.2
2011-01-01 80
2011-04-01 80.9
2011-07-01 83.2
2011-10-01 82.1
2012-01-01 81.9
2012-04-01 83.3
2012-07-01 84.5
2012-10-01 82.6
2013-01-01 83.3
2013-04-01 86.2
2013-07-01 84.9
2013-10-01 84.2
2014-01-01 84.2
2014-04-01 86.7
2014-07-01 85.2
2014-10-01 86.4
2015-01-01 84.9
2015-04-01 87.2
2015-07-01 90.5
2015-10-01 88.3
2016-01-01 86.2
2016-04-01 88.5
2016-07-01 89.2
2016-10-01 87.7
2017-01-01 87.4
2017-04-01 87.3
2017-07-01 90.3
2017-10-01 89.0
2018-01-01 87.0
2018-04-01 90.3