Year	days
2003	12
2004	12
2005	11.5
2006	11.5
2007	11.5
2008	11.5
2009	11.5
2010	11.5
2011	11.5
2012	11.5
2013	11.5
2014	6
2015	4.5
2016	4.5
2017	4.5
2018	4.5
2019	4.5