Year	days
2003	58.34722222222222
2004	56.3051948051948
2005	60.272222222222226
2006	56.917582417582416
2007	52.46153846153846
2008	49.252747252747255
2009	46.67934782608695
2010	44.61413043478261
2011	41.233695652173914
2012	40.52127659574468
2013	32.70725490196079
2014	29.13323529411765
2015	28.218627450980392
2016	27.23009803921569
2017	24.98044117647059
2018	22.720588235294116
2019	21.925735294117647