Quarter	Percent
1995-01-01	7.69230769230769
1995-04-01	6.98503207412687
1995-07-01	7.20880681818182
1995-10-01	6.50377290693496
1996-01-01	7.59087669280114
1996-04-01	6.83427762039660
1996-07-01	7.06214689265537
1996-10-01	6.12606232294618
1997-01-01	7.20815752461322
1997-04-01	5.42826929855481
1997-07-01	6.40668523676880
1997-10-01	5.58854348585400
1998-01-01	6.14898102600140
1998-04-01	5.05478967833157
1998-07-01	6.09968630184733
1998-10-01	4.84210526315790
1999-01-01	5.60000000000000
1999-04-01	5.10000000000000
1999-07-01	5.80000000000000
1999-10-01	5.70000000000000
2000-01-01	5.30000000000000
2000-04-01	4.50000000000000
2000-07-01	4.50000000000000
2000-10-01	4.20000000000000
2001-01-01	5.00000000000000
2001-04-01	4.20000000000000
2001-07-01	4.70000000000000
2001-10-01	4.60000000000000
2002-01-01	4.70000000000000
2002-04-01	4.30000000000000
2002-07-01	4.80000000000000
2002-10-01	4.60000000000000
2003-01-01	5.30000000000000
2003-04-01	5.40000000000000
2003-07-01	5.50000000000000
2003-10-01	5.40000000000000
2004-01-01	6.10000000000000
2004-04-01	5.20000000000000
2004-07-01	5.70000000000000
2004-10-01	5.00000000000000
2005-01-01	5.70000000000000
2005-04-01	4.80000000000000
2005-07-01	4.80000000000000
2005-10-01	4.00000000000000
2006-01-01	4.50000000000000
2006-04-01	3.90000000000000
2006-07-01	3.70000000000000
2006-10-01	3.50000000000000
2007-01-01	4.30000000000000
2007-04-01	3.60000000000000
2007-07-01	4.00000000000000
2007-10-01	3.30000000000000
2008-01-01	3.60000000000000
2008-04-01	3.10000000000000
2008-07-01	3.40000000000000
2008-10-01	3.60000000000000
2009-01-01	5.30000000000000
2009-04-01	5.90000000000000
2009-07-01	6.20000000000000
2009-10-01	6.60000000000000
2010-01-01	7.80000000000000
2010-04-01	7.50000000000000
2010-07-01	7.30000000000000
2010-10-01	7.30000000000000
2011-01-01	8.10000000000000
2011-04-01	7.30000000000000
2011-07-01	7.50000000000000
2011-10-01	7.40000000000000
2012-01-01	8.10000000000000
2012-04-01	7.80000000000000
2012-07-01	7.40000000000000
2012-10-01	6.90000000000000
2013-01-01	7.70000000000000
2013-04-01	6.70000000000000
2013-07-01	7.00000000000000
2013-10-01	6.50000000000000
2014-01-01	7.40000000000000
2014-04-01	6.30000000000000
2014-07-01	6.50000000000000
2014-10-01	6.10000000000000
2015-01-01	6.60000000000000
2015-04-01	6.00000000000000
2015-07-01	6.20000000000000
2015-10-01	5.80000000000000
2016-01-01	6.30000000000000
2016-04-01	6.00000000000000
2016-07-01	6.30000000000000
2016-10-01	6.10000000000000
2017-01-01	6.50000000000000
2017-04-01	5.50000000000000
2017-07-01	5.90000000000000
2017-10-01	5.10000000000000
2018-01-01	5.20000000000000
2018-04-01	4.90000000000000