Year	Hours Per Week
1995	42.3114
1996	43.2928
1997	43.2118
1998	42.8387
1999	43.4523
2000	44.3978
2001	43.7792
2002	42.9708
2003	42.0042
2004	42.2196
2005	42.3381
2006	42.5104
2007	41.9735
2008	41.5959
2009	39.6537
2010	39.4905
2011	40.0114
2012	39.7987
2013	39.7755
2014	39.7607
2015	40.0029
2016	40.0626
2017	39.7894