2012-09-01 100%

2013-05-01 62.7%

2008-08-01 62.3%

2007-08-01 61.7%

2012-07-01 61.1%

2001-06-01 60.4%

1996-04-01 60.2%

2013-02-01 60.2%

2002-07-01 60%

2007-07-01 60%

2008-10-01 59.6%

1995-09-01 59.6%

2009-03-01 59.4%

2012-08-01 59.2%

2002-04-01 59%

2009-02-01 59%

2014-02-01 59%

2012-03-01 59%

2010-08-01 58.8%

2006-07-01 58.8%

2004-02-01 58.6%

2014-05-01 58.6%

2013-10-01 58.6%

2004-10-01 58.4%

2006-01-01 58.2%

2004-06-01 58.2%

2008-02-01 58%

2008-07-01 58%

2008-06-01 57.8%

2002-02-01 57.6%

2015-02-01 57.6%

1997-09-01 57.6%

2018-09-01 57.6%

2011-08-01 57.4%

1992-02-01 57.4%

2006-06-01 57.4%

1987-11-01 57.4%

1992-09-01 57.4%

2023-08-07 57.2%

2006-02-01 57.2%

1993-01-01 57.2%

2014-03-01 57.2%

2012-05-01 57.2%

2009-11-01 57.2%

2004-09-01 57.2%

1995-07-01 57%

2004-11-01 57%

1997-07-01 56.8%

2002-03-01 56.8%

2009-05-01 56.8%