2006-02-01 100%

2008-07-01 63%

2008-02-01 62.8%

2004-09-01 62.5%

2006-01-01 61.7%

2008-06-01 61.6%

2002-03-01 60.9%

2007-08-01 60.4%

2009-06-01 60.4%

2004-06-01 60.2%

2012-05-01 60.1%

2015-11-01 60.1%

2002-10-01 59.9%

2006-07-01 59.6%

2005-01-01 59.6%

2008-10-01 59.3%

2006-03-01 59.2%

2002-11-01 59.1%

2003-07-01 59.1%

2013-03-01 59.1%

2007-09-01 59.1%

2002-05-01 58.9%

2014-09-01 58.8%

2007-07-01 58.7%

2011-08-01 58.7%

2017-06-01 58.6%

2019-04-04 58.6%

2009-02-01 58.6%

2006-08-01 58.4%

2013-01-01 58.3%

2008-01-01 58.3%

2004-05-01 58.1%

2018-09-01 57.8%

2007-06-01 57.7%

2001-06-01 57.7%

2005-10-01 57.7%

2015-04-01 57.6%

2024-10-03 57.4%

2014-03-01 57.4%

2021-01-08 57.3%

2006-06-01 57.3%

2018-07-01 57.2%

2005-02-01 57.2%

2010-05-01 57.1%

2006-11-01 57.1%

2015-05-01 56.9%

2014-04-01 56.9%

1987-12-01 56.8%

2004-10-01 56.7%

1997-03-01 56.6%