Year	Hours Per Week
1996	37.1014
1997	37.1959
1998	37.2164
1999	37.4013
2000	37.6996
2001	37.8343
2002	37.1985
2003	37.4109
2004	37.6806
2005	37.7533
2006	37.8295
2007	37.4007
2008	37.6237
2009	36.9788
2010	37.2528
2011	37.1499
2012	36.9249
2013	36.7533
2014	36.4118
2015	36.4944
2016	36.6088
2017	36.4515