Year	Hours Per Week
1995	37.1554
1996	37.887
1997	39.8447
1998	38.1552
1999	37.9738
2000	37.2541
2001	36.7615
2002	37.2705
2003	36.473
2004	37.0379
2005	37.438
2006	37.3455
2007	37.1922
2008	37.1371
2009	36.5168
2010	36.7648
2011	36.7439
2012	36.4811
2013	36.1897
2014	36.0364
2015	36.0918
2016	36.2442
2017	36.1104