Year	days
2003	58.388888888888886
2004	56.36363636363637
2005	60.32222222222222
2006	56.967032967032964
2007	52.510989010989015
2008	49.30769230769231
2009	46.733695652173914
2010	44.66847826086956
2011	41.28804347826087
2012	40.57446808510638
2013	32.753921568627455
2014	29.182352941176475
2015	28.268627450980393
2016	27.279411764705884
2017	25.029411764705884
2018	22.764705882352946
2019	21.96960784313726