Year	Hours Per Week
1992	35.2554
1993	34.9815
1994	36.0704
1995	34.7996
1996	34.5931
1997	35.1113
1998	34.3612
1999	36.1001
2000	34.7958
2001	35.1945
2002	35.6556
2003	34.7956
2004	34.4216
2005	35.7873
2006	35.5806
2007	35.6429
2008	35.4362
2009	35.042
2010	35.3078
2011	35.4917
2012	35.2957
2013	35.292
2014	34.9744
2015	34.9115
2016	34.2969
2017	34.5534