Year	days
2009	135.54545454545453
2010	135.54545454545453
2011	129.63636363636363
2012	130.36363636363637
2013	124.36363636363636
2014	118.81818181818181
2015	112.9090909090909
2016	122.81818181818181
2017	122.72727272727273
2018	122.72727272727273
2019	121.45454545454545