2006-06-01 100%

2008-06-01 62.8%

2009-02-01 62.4%

2008-01-01 62.1%

2009-06-01 61.7%

2008-08-01 61.4%

2002-05-01 60.9%

2017-06-01 60.6%

2004-09-01 60.4%

2008-10-01 60.4%

2006-08-01 60.4%

2007-08-01 60.3%

2007-09-01 60.3%

2006-03-01 60.1%

2013-01-01 59.7%

2008-05-01 59.2%

2007-06-01 59.2%

1997-07-01 59.1%

2003-01-01 59%

2007-03-01 58.8%

2005-01-01 58.8%

2007-01-01 58.8%

2003-12-01 58.7%

2006-01-01 58.7%

2014-09-01 58.6%

2015-10-01 58.6%

2005-02-01 58.6%

2015-11-01 58.5%

2005-10-01 58.5%

2002-06-01 58.5%

2011-09-01 58.4%

2015-05-01 58.4%

2019-04-04 58.4%

2014-03-01 58.3%

2002-03-01 58.3%

2012-03-01 58.2%

1986-07-01 58.2%

2010-04-01 58.2%

2010-08-01 58.2%

2008-12-01 58.1%

2014-05-01 58.1%

1995-08-01 58.1%

2006-05-01 58.1%

2009-12-01 58%

2006-07-01 57.9%

2023-11-06 57.9%

2002-11-01 57.8%

2008-02-01 57.7%

2012-08-01 57.6%

2021-01-08 57.6%