Year	days
2004	100.42857142857143
2005	91.55
2006	89.05
2007	66.35
2008	65.525
2009	64.5
2010	62.075
2011	58.025
2012	59.125
2013	54.08636363636364
2014	50.63954545454546
2015	50.63954545454546
2016	49.97840909090908
2017	49.82749999999999
2018	53.05477272727273
2019	52.54590909090909