Year	Hours Per Week
2001	43
2002	43
2003	44
2004	44.6
2005	48.7
2006	45.4
2007	38
2008	38.5
2009	35
2010	37.6885
2011	37.2002
2012	36
2013	38.3037
2014	40.4358
2015	38.2543
2016	37.8865