Year	days
2003	39.5
2004	31.6
2005	31.6
2006	31.6
2007	28.2
2008	28.2
2009	28.6
2010	27.4
2011	24.2
2012	19.4
2013	18.93625
2014	17.3125
2015	16.5625
2016	16.24625
2017	16.158125
2018	14.12125
2019	14.62125