Quarterly Percent
1999-04-01 8.56886052625666
2000-04-01 7.64998369742419
2001-04-01 7.77815552684663
2002-04-01 8.70860084025972
2003-04-01 10.19571998945000
2004-04-01 11.26738745141990
2005-01-01 12.00000000000000
2005-04-01 11.60000000000000
2005-07-01 11.20000000000000
2005-10-01 10.90000000000000
2006-01-01 11.70000000000000
2006-04-01 10.40000000000000
2006-07-01 9.70000000000000
2006-10-01 9.60000000000000
2007-01-01 9.70000000000000
2007-04-01 8.40000000000000
2007-07-01 8.20000000000000
2007-10-01 7.90000000000000
2008-01-01 8.30000000000000
2008-04-01 7.70000000000000
2008-07-01 6.80000000000000
2008-10-01 7.00000000000000
2009-01-01 8.40000000000000
2009-04-01 8.30000000000000
2009-07-01 8.10000000000000
2009-10-01 7.70000000000000
2010-01-01 8.50000000000000
2010-04-01 7.40000000000000
2010-07-01 7.00000000000000
2010-10-01 6.60000000000000
2011-01-01 7.00000000000000
2011-04-01 6.10000000000000
2011-07-01 5.80000000000000
2011-10-01 5.30000000000000
2012-01-01 6.30000000000000
2012-04-01 5.50000000000000
2012-07-01 5.40000000000000
2012-10-01 5.20000000000000
2013-01-01 6.20000000000000
2013-04-01 5.50000000000000
2013-07-01 5.30000000000000
2013-10-01 5.10000000000000
2014-01-01 5.90000000000000
2014-04-01 5.30000000000000
2014-07-01 5.00000000000000
2014-10-01 5.00000000000000
2015-01-01 5.50000000000000
2015-04-01 5.10000000000000
2015-07-01 4.80000000000000
2015-10-01 4.70000000000000
2016-01-01 4.80000000000000
2016-04-01 4.60000000000000
2016-07-01 4.30000000000000
2016-10-01 4.20000000000000
2017-01-01 4.60000000000000
2017-04-01 4.30000000000000
2017-07-01 3.90000000000000
2017-10-01 3.80000000000000
2018-01-01 4.20000000000000
2018-04-01 3.90000000000000