Year	days
2009	81.2
2010	81.2
2011	82.8
2012	79.8
2013	90.53764705882354
2014	90.53764705882354
2015	87.33176470588236
2016	88.37
2017	88.31117647058824
2018	86.30470588235293
2019	82.0264705882353