Year	days
2005	206.6304347826087
2006	203.19565217391303
2007	205.17391304347825
2008	206.82608695652175
2009	196.7391304347826
2010	191.06521739130434
2011	186.67391304347825
2012	182.51063829787233
2013	178.5049019607843
2014	173.5049019607843
2015	171.74019607843138
2016	167.88725490196077
2017	161.04274509803923
2018	158.8327450980392
2019	154.5769607843137