Month	Hours per Week
2001-01-01	29.7
2001-02-01	28.9
2001-03-01	29.6
2001-04-01	29.8
2001-05-01	31.0
2001-06-01	30.1
2001-07-01	30.3
2001-08-01	29.6
2001-09-01	28.1
2001-10-01	27.8
2001-11-01	28.5
2001-12-01	30.0
2002-01-01	29.2
2002-02-01	28.6
2002-03-01	30.6
2002-04-01	29.7
2002-05-01	30.2
2002-06-01	29.7
2002-07-01	30.4
2002-08-01	29.1
2002-09-01	29.1
2002-10-01	29.0
2002-11-01	32.2
2002-12-01	32.9
2003-01-01	30.2
2003-02-01	30.6
2003-03-01	30.8
2003-04-01	30.5
2003-05-01	29.0
2003-06-01	30.6
2003-07-01	30.5
2003-08-01	30.0
2003-09-01	29.6
2003-10-01	29.7
2003-11-01	30.4
2003-12-01	30.5
2004-01-01	30.1
2004-02-01	31.8
2004-03-01	30.7
2004-04-01	31.2
2004-05-01	30.2
2004-06-01	30.8
2004-07-01	31.0
2004-08-01	29.9
2004-09-01	27.3
2004-10-01	30.2
2004-11-01	30.7
2004-12-01	33.8
2005-01-01	33.3
2005-02-01	32.4
2005-03-01	32.3
2005-04-01	31.9
2005-05-01	32.3
2005-06-01	33.3
2005-07-01	32.7
2005-08-01	31.6
2005-09-01	31.9
2005-10-01	32.1
2005-11-01	32.8
2005-12-01	34.2
2006-01-01	34.2
2006-02-01	33.0
2006-03-01	33.4
2006-04-01	32.6
2006-05-01	31.6
2006-06-01	32.5
2006-07-01	32.9
2006-08-01	31.9
2006-09-01	31.7
2006-10-01	31.7
2006-11-01	31.8
2006-12-01	32.3
2007-01-01	32.1
2007-02-01	31.7
2007-03-01	31.9
2007-04-01	33.0
2007-05-01	32.1
2007-06-01	32.5
2007-07-01	32.6
2007-08-01	31.6
2007-09-01	31.0
2007-10-01	31.2
2007-11-01	31.9
2007-12-01	32.3
2008-01-01	32.6
2008-02-01	31.0
2008-03-01	31.1
2008-04-01	30.9
2008-05-01	31.3
2008-06-01	31.9
2008-07-01	31.8
2008-08-01	30.1
2008-09-01	30.2
2008-10-01	30.5
2008-11-01	31.1
2008-12-01	31.1
2009-01-01	30.1
2009-02-01	30.5
2009-03-01	30.5
2009-04-01	30.7
2009-05-01	30.5
2009-06-01	30.4
2009-07-01	31.0
2009-08-01	29.5
2009-09-01	29.9
2009-10-01	29.1
2009-11-01	29.3
2009-12-01	30.6
2010-01-01	28.9
2010-02-01	29.7
2010-03-01	29.6
2010-04-01	29.0
2010-05-01	29.3
2010-06-01	29.8
2010-07-01	29.5
2010-08-01	29.4
2010-09-01	27.2
2010-10-01	29.9
2010-11-01	30.0
2010-12-01	30.5
2011-01-01	29.4
2011-02-01	29.7
2011-03-01	30.1
2011-04-01	30.9
2011-05-01	31.7
2011-06-01	32.0
2011-07-01	32.5
2011-08-01	30.9
2011-09-01	29.9
2011-10-01	29.9
2011-11-01	30.4
2011-12-01	30.9
2012-01-01	30.8
2012-02-01	30.0
2012-03-01	30.5
2012-04-01	30.6
2012-05-01	30.6
2012-06-01	29.6
2012-07-01	30.4
2012-08-01	29.6
2012-09-01	28.5
2012-10-01	28.1
2012-11-01	28.8
2012-12-01	29.3
2013-01-01	28.0
2013-02-01	28.0
2013-03-01	28.4
2013-04-01	29.1
2013-05-01	29.5
2013-06-01	30.3
2013-07-01	29.4
2013-08-01	29.0
2013-09-01	28.2
2013-10-01	28.2
2013-11-01	28.4
2013-12-01	28.5