Year	Hours Per Week
2002	41.0409
2003	40.9058
2004	40.6665
2005	40.1344
2006	40.162
2007	40.479
2008	40.1657
2009	39.8708
2010	39.7345
2011	39.5086
2012	39.3863
2013	39.2073
2014	39.309
2015	38.3925
2016	38.471
2017	38.8808