Year	days
2009	61
2010	59.5
2011	62.09090909090909
2012	62.09090909090909
2013	62.09090909090909
2014	62.09090909090909
2015	59.36363636363637
2016	59.36363636363637
2017	59.36363636363637
2018	59.36363636363637
2019	57.90909090909091