Quarterly Percent
1999-01-01 84.8
1999-04-01 84.9
1999-07-01 88.1
1999-10-01 87.5
2000-01-01 87.4
2000-04-01 85.2
2000-07-01 85.7
2000-10-01 85.2
2001-01-01 84.2
2001-04-01 85
2001-07-01 82.9
2001-10-01 82.9
2002-01-01 84.2
2002-04-01 84.6
2002-07-01 85.9
2002-10-01 87.4
2003-01-01 85
2003-04-01 85
2003-07-01 86.5
2003-10-01 83.7
2004-01-01 83.7
2004-04-01 80
2004-07-01 80.2
2004-10-01 83.7
2005-01-01 84
2005-04-01 79.8
2005-07-01 80.4
2005-10-01 80
2006-01-01 79.9
2006-04-01 77.5
2006-07-01 77.5
2006-10-01 79.4
2007-01-01 78.6
2007-04-01 75.7
2007-07-01 75.5
2007-10-01 78.1
2008-01-01 79.5
2008-04-01 77.7
2008-07-01 77.2
2008-10-01 77
2009-01-01 77.2
2009-04-01 74.4
2009-07-01 72.3
2009-10-01 73.8
2010-01-01 75.9
2010-04-01 73.1
2010-07-01 74.9
2010-10-01 74.2
2011-01-01 78.8
2011-04-01 76.4
2011-07-01 74.6
2011-10-01 75.3
2012-01-01 75
2012-04-01 72.7
2012-07-01 73.7
2012-10-01 72.7
2013-01-01 74.3
2013-04-01 71.6
2013-07-01 72.8
2013-10-01 73.4
2014-01-01 71
2014-04-01 67.6
2014-07-01 67.8
2014-10-01 69.2
2015-01-01 69.0
2015-04-01 66.4
2015-07-01 65.7
2015-10-01 67.2
2016-01-01 64.3
2016-04-01 64.0
2016-07-01 67.0
2016-10-01 63.9
2017-01-01 62.3
2017-04-01 59.7
2017-07-01 60.8
2017-10-01 59.1
2018-01-01 58.3
2018-04-01 54.5
