Year	days
2004	111.38888888888889
2005	105.74418604651163
2006	96.63636363636364
2007	92.88636363636364
2008	84.70454545454545
2009	73.22727272727273
2010	68.63636363636364
2011	66.31818181818181
2012	66.77777777777777
2013	60.52608695652174
2014	58.52608695652174
2015	60.259574468085106
2016	59.727659574468085
2017	59.375744680851064
2018	53.69489361702127
2019	52.00340425531915