Year	days
2003	60.526315789473685
2004	59.68292682926829
2005	57.06521739130435
2006	55.54347826086956
2007	51.21739130434783
2008	49.65217391304348
2009	47.58695652173913
2010	43.69565217391305
2011	38.80434782608695
2012	37.797872340425535
2013	32.75078431372549
2014	28.731372549019607
2015	27.750980392156862
2016	26.978235294117646
2017	26.131078431372547
2018	24.517450980392155
2019	23.5921568627451