Year	days
2009	96.34285714285714
2010	96.34285714285714
2011	94.82857142857142
2012	93.91428571428571
2013	89.3007894736842
2014	83.3007894736842
2015	80.16921052631578
2016	78.85763157894738
2017	77.4721052631579
2018	75.07736842105263
2019	73.78789473684209