Year	Hours Per Week
2001	47.7
2002	48.3
2003	48.1
2004	47.4
2005	48.2
2006	48
2007	47.3
2008	46.9
2009	47.1
2010	47.1
2011	46.7
2012	46.4
2013	45.9
2014	46.2
2015	45.4
2016	45.5