Year	days
2009	161.97368421052633
2010	136.1315789473684
2011	131.55263157894737
2012	128.10526315789474
2013	121.34210526315789
2014	116.21052631578948
2015	112.78378378378379
2016	111.83783783783784
2017	110.70270270270271
2018	109.21621621621621
2019	107.86486486486487