Quarterly Percent
1999-01-01 87.2
1999-04-01 87.5
1999-07-01 86.7
1999-10-01 86.9
2000-01-01 87.1
2000-04-01 87.7
2000-07-01 87.7
2000-10-01 87.3
2001-01-01 87.4
2001-04-01 87.8
2001-07-01 88.3
2001-10-01 88.3
2002-01-01 88.9
2002-04-01 88.7
2002-07-01 87.7
2002-10-01 87.2
2003-01-01 87.3
2003-04-01 87.7
2003-07-01 87.4
2003-10-01 87.7
2004-01-01 87.9
2004-04-01 88.8
2004-07-01 89.1
2004-10-01 88.6
2005-01-01 88.7
2005-04-01 88.7
2005-07-01 88.3
2005-10-01 89.5
2006-01-01 89.2
2006-04-01 89.5
2006-07-01 88.8
2006-10-01 88.7
2007-01-01 88.8
2007-04-01 89.9
2007-07-01 89
2007-10-01 89.6
2008-01-01 89.7
2008-04-01 89.8
2008-07-01 90.3
2008-10-01 90.6
2009-01-01 89.4
2009-04-01 89.6
2009-07-01 89.5
2009-10-01 90
2010-01-01 90.1
2010-04-01 90.3
2010-07-01 89.1
2010-10-01 90.4
2011-01-01 90.5
2011-04-01 90
2011-07-01 89.8
2011-10-01 90.3
2012-01-01 90.6
2012-04-01 90.1
2012-07-01 91.3
2012-10-01 91.1
2013-01-01 91.1
2013-04-01 90.4
2013-07-01 90.7
2013-10-01 90.6
2014-01-01 90.8
2014-04-01 90.7
2014-07-01 90.1
2014-10-01 89.8
2015-01-01 90.1
2015-04-01 91.1
2015-07-01 91.7
2015-10-01 90.4
2016-01-01 89.6
2016-04-01 90.4
2016-07-01 90.6
2016-10-01 91.3
2017-01-01 91.3
2017-04-01 91.7
2017-07-01 92.1
2017-10-01 92.2
2018-01-01 91.6
2018-04-01 91.8
