Quarterly Percent
1999-04-01 8.7
1999-07-01 9.0
1999-10-01 8.3
2000-01-01 6.9
2000-04-01 6.2
2000-07-01 7.5
2000-10-01 6.6
2001-01-01 6.1
2001-04-01 6.5
2001-07-01 8.8
2001-10-01 8.1
2002-01-01 8.6
2002-04-01 8.8
2002-07-01 9.8
2002-10-01 9.4
2003-01-01 9.5
2003-04-01 9.0
2003-07-01 10.9
2003-10-01 9.6
2004-01-01 8.3
2004-04-01 8.9
2004-07-01 10.3
2004-10-01 9.5
2005-01-01 8.3
2005-04-01 9.1
2005-07-01 9.6
2005-10-01 9.4
2006-01-01 8.7
2006-04-01 8.7
2006-07-01 10.8
2006-10-01 7.5
2007-01-01 9.6
2007-04-01 11.1
2007-07-01 10.4
2007-10-01 9.9
2008-01-01 12.2
2008-04-01 15.3
2008-07-01 17.8
2008-10-01 20.9
2009-01-01 25.8
2009-04-01 32.8
2009-07-01 33.3
2009-10-01 34.5
2010-01-01 33.9
2010-04-01 35.5
2010-07-01 34.3
2010-10-01 35.4
2011-01-01 35.0
2011-04-01 36.9
2011-07-01 36.6
2011-10-01 36.0
2012-01-01 37.9
2012-04-01 40.0
2012-07-01 37.4
2012-10-01 34.4
2013-01-01 31.5
2013-04-01 33.3
2013-07-01 30.2
2013-10-01 26.3
2014-01-01 28.2
2014-04-01 28.1
2014-07-01 26.1
2014-10-01 24.1
2015-01-01 25.0
2015-04-01 24.0
2015-07-01 23.1
2015-10-01 22.2
2016-01-01 20.6
2016-04-01 20.7
2016-07-01 19.9
2016-10-01 17.5
2017-01-01 14.6
2017-04-01 18.5
2017-07-01 16.9
2017-10-01 14.0
2018-01-01 13.2
2018-04-01 16.2