Quarterly Percent
1999-01-01 13.2
2000-01-01 18.6
2000-04-01 18.4
2000-07-01 17.5
2000-10-01 18.1
2001-01-01 19.8
2001-04-01 20.1
2001-07-01 19.7
2001-10-01 20
2002-01-01 21
2002-04-01 20.7
2002-07-01 21.4
2002-10-01 20.6
2003-01-01 20.9
2003-04-01 20
2003-07-01 20.6
2003-10-01 20.4
2004-01-01 21.3
2004-04-01 19.8
2004-07-01 19.2
2004-10-01 19.6
2005-01-01 20.1
2005-04-01 19.2
2005-07-01 19.1
2005-10-01 18.4
2006-01-01 16.8
2006-04-01 14.9
2006-07-01 14.4
2006-10-01 13.8
2007-01-01 12.1
2007-04-01 10.1
2007-07-01 9.8
2007-10-01 9.5
2008-01-01 8.7
2008-04-01 7.8
2008-07-01 7.8
2008-10-01 7.7
2009-01-01 8.9
2009-04-01 8.4
2009-07-01 8.6
2009-10-01 8.8
2010-01-01 10.7
2010-04-01 9.9
2010-07-01 9.8
2010-10-01 9.9
2011-01-01 10.2
2011-04-01 10.1
2011-07-01 10.6
2011-10-01 10.8
2012-01-01 11
2012-04-01 10.7
2012-07-01 10.9
2012-10-01 11.1
2013-01-01 11.9
2013-04-01 11.2
2013-07-01 10.8
2013-10-01 10.5
2014-01-01 11
2014-04-01 9.7
2014-07-01 9.0
2014-10-01 8.7
2015-01-01 8.8
2015-04-01 7.5
2015-07-01 7.5
2015-10-01 7.1
2016-01-01 7.0
2016-04-01 6.0
2016-07-01 6.2
2016-10-01 5.7
2017-01-01 5.4
2017-04-01 4.7
2017-07-01 4.9
2017-10-01 4.6
2018-01-01 4.3
2018-04-01 3.5
