2003-08-07 100%

2004-10-01 59.6%

2013-06-01 58.4%

2005-11-01 57.8%

2014-09-01 57.8%

2007-12-01 57.6%

2008-07-01 57.6%

2001-11-01 57.6%

2013-05-01 57.2%

2004-06-01 57%

2015-06-02 56.8%

2017-06-01 56.8%

2006-11-01 56.8%

2004-04-01 56.4%

2002-02-01 56.4%

2015-02-01 56.4%

2012-01-01 56.4%

2007-07-01 56.4%

2008-10-01 56.4%

2013-09-01 56.4%

2005-02-01 56.3%

2008-01-01 56.3%

2008-06-01 56.3%

2009-11-01 56.3%

1997-04-01 56.1%

1992-01-01 56.1%

2004-11-01 56.1%

2002-10-01 56.1%

2015-04-01 55.9%

2007-01-01 55.9%

2002-11-01 55.9%

2013-11-01 55.9%

2015-10-01 55.9%

2015-01-01 55.7%

2014-07-01 55.7%

2012-09-01 55.7%

2001-08-01 55.5%

2004-08-01 55.5%

2009-12-01 55.3%

2006-01-01 55.3%

2005-03-01 55.3%

2014-03-01 55.3%

2000-12-01 55.1%

2013-01-04 55.1%

2015-09-01 55.1%

2016-09-01 55.1%

1992-04-01 54.9%

2012-07-01 54.9%

1997-03-01 54.9%

2015-05-01 54.9%