Year	days
2004	36.5
2005	36.5
2006	36.5
2007	36.5
2008	36.5
2009	36.5
2010	36.5
2011	37
2012	36.5
2013	36.5
2014	31.5
2015	31.5
2016	31.5
2017	31.5
2018	31.5
2019	31.5