Monthly Percent
1999-01-31 3.1
1999-02-28 2.7
1999-03-31 2.5
1999-04-30 2.5
1999-05-31 2.3
1999-06-30 2.3
1999-07-31 2.3
1999-08-31 2.3
1999-09-30 2.3
1999-10-31 2.4
1999-11-30 2.4
1999-12-31 2.5
2000-01-31 2.6
2000-02-29 2.7
2000-03-31 2.8
2000-04-30 3
2000-05-31 2.9
2000-06-30 2.9
2000-07-31 2.9
2000-08-31 2.9
2000-09-30 3.1
2000-10-31 3.1
2000-11-30 3.1
2000-12-31 3.1
2001-01-31 3.1
2001-02-28 3.1
2001-03-31 2.9
2001-04-30 2.9
2001-05-31 2.7
2001-06-30 2.6
2001-07-31 2.6
2001-08-31 2.6
2001-09-30 2.4
2001-10-31 2.2
2001-11-30 2
2001-12-31 1.7
2002-01-31 1.7
2002-02-28 1.7
2002-03-31 1.7
2002-04-30 1.8
2002-05-31 1.8
2002-06-30 1.8
2002-07-31 1.8
2002-08-31 1.9
2002-09-30 1.9
2002-10-31 1.7
2002-11-30 1.9
2002-12-31 1.9
2003-01-31 1.9
2003-02-28 1.9
2003-03-31 1.8
2003-04-30 1.8
2003-05-31 1.8
2003-06-30 1.8
2003-07-31 1.7
2003-08-31 1.6
2003-09-30 1.6
2003-10-31 1.6
2003-11-30 1.6
2003-12-31 1.8
2004-01-31 2
2004-02-29 2.2
2004-03-31 2.3
2004-04-30 2.3
2004-05-31 2.4
2004-06-30 2.5
2004-07-31 2.8
2004-08-31 2.9
2004-09-30 3
2004-10-31 3.1
2004-11-30 3
2004-12-31 3.1
2005-01-31 3
2005-02-28 3.1
2005-03-31 3.1
2005-04-30 3.1
2005-05-31 3.1
2005-06-30 3
2005-07-31 3.1
2005-08-31 3
2005-09-30 2.9
2005-10-31 2.9
2005-11-30 2.9
2005-12-31 2.7
2006-01-31 2.7
2006-02-28 2.7
2006-03-31 2.7
2006-04-30 2.7
2006-05-31 2.7
2006-06-30 2.7
2006-07-31 2.7
2006-08-31 2.7
2006-09-30 2.8
2006-10-31 2.9
2006-11-30 2.9
2006-12-31 3
2007-01-31 3
2007-02-28 3.1
2007-03-31 3.1
2007-04-30 3.1
2007-05-31 3.1
2007-06-30 3.3
2007-07-31 3.3
2007-08-31 3.5
2007-09-30 3.5
2007-10-31 3.5
2007-11-30 3.5
2007-12-31 3.4
2008-01-31 3.3
2008-02-29 3.3
2008-03-31 3.1
2008-04-30 3.1
2008-05-31 3
2008-06-30 3
2008-07-31 3.1
2008-08-31 3.1
2008-09-30 3.1
2008-10-31 3
2008-11-30 2.6
2008-12-31 1.6
2009-01-31 1.1
2009-02-28 0.9
2009-03-31 0.8
2009-04-30 0.8
2009-05-31 0.7
2009-06-30 0.8
2009-07-31 0.7
2009-08-31 0.7
2009-09-30 0.7
2009-10-31 0.7
2009-11-30 0.7
2009-12-31 0.7
2010-01-31 0.9
2010-02-28 0.8
2010-03-31 0.8
2010-04-30 0.8
2010-05-31 0.8
2010-06-30 0.8
2010-07-31 0.8
2010-08-31 0.8
2010-09-30 0.8
2010-10-31 0.8
2010-11-30 0.8
2010-12-31 0.9
2011-01-31 1
2011-02-28 0.9
2011-03-31 0.9
2011-04-30 0.9
2011-05-31 0.9
2011-06-30 0.9
2011-07-31 0.9
2011-08-31 0.9
2011-09-30 1
2011-10-31 1
2011-11-30 1
2011-12-31 1
2012-01-31 1
2012-02-29 1
2012-03-31 1
2012-04-30 1
2012-05-31 1.1
2012-06-30 1.1
2012-07-31 1
2012-08-31 1
2012-09-30 1
2012-10-31 1.1
2012-11-30 1.1
2012-12-31 1.1
2013-01-31 1.1
2013-02-28 1.1
2013-03-31 1
2013-04-30 1
2013-05-31 1
2013-06-30 0.9
2013-07-31 0.9
2013-08-31 0.8
2013-09-30 0.9
2013-10-31 0.8
2013-11-30 0.8