2010-02-01 100%

2008-08-01 60.7%

2009-02-01 58.4%

2015-02-01 58.2%

2004-11-01 58.2%

2013-10-01 58.2%

2008-10-01 57.8%

2013-01-01 56.8%

2012-08-01 56.6%

1997-04-01 56.4%

2010-08-01 56.4%

2012-07-01 56.4%

2009-09-01 56.4%

2002-07-01 56.3%

2008-07-01 56.3%

2009-06-01 56.3%

2008-11-01 56.3%

2007-07-01 56.1%

2008-06-01 55.9%

2013-06-01 55.9%

2002-02-01 55.7%

2001-06-01 55.7%

2007-10-01 55.7%

1992-09-01 55.7%

2013-01-02 55.5%

2010-07-01 55.5%

2014-07-01 55.5%

2005-03-01 55.5%

2011-12-01 55.3%

2000-06-01 55.3%

2009-11-01 55.3%

2012-09-01 55.3%

2007-09-01 55.3%

2010-04-01 55.1%

2010-06-01 55.1%

2014-05-01 55.1%

2006-11-01 55.1%

2008-09-01 55.1%

2010-09-01 55.1%

2018-09-01 55.1%

2007-12-01 54.9%

2012-05-01 54.9%

2009-12-01 54.7%

2013-02-01 54.7%

2013-01-04 54.7%

2004-06-01 54.7%

2006-05-01 54.7%

2013-09-01 54.7%

1992-02-01 54.5%

2001-03-01 54.5%