Year	Hours Per Week
1992	43.7209
1993	44.2758
1994	43.1604
1995	42.8606
1996	42.4302
1997	42.3655
1998	42.516
1999	42.9407
2000	42.6348
2001	42.6894
2002	42.4669
2003	42.5637
2004	42.4698
2005	42.3132
2006	41.9229
2007	41.6416
2008	41.5564
2009	41.2685
2010	41.3027
2011	41.248
2012	41.1427
2013	41.1684
2014	40.9039
2015	40.9256
2016	41.183
2017	41.0239