Year	days
2003	19.3
2004	19.3
2005	19.3
2006	19.3
2007	18.3
2008	18.2
2009	15.2
2010	15.2
2011	13.2
2012	8.2
2013	8.3
2014	8.3
2015	8.3
2016	8.3
2017	8.3
2018	3.8
2019	3.8