Year	days
2003	9
2004	9
2005	9
2006	8
2007	8
2008	8
2009	8
2010	8
2011	8
2012	5
2013	4
2014	3.5
2015	3.5
2016	3.5
2017	3.5
2018	3.5
2019	3.5
