Year	days
2004	42
2005	101
2006	98
2007	90.55
2008	90.65
2009	88.85
2010	87.15
2011	80.13636363636364
2012	80.04545454545455
2013	35.90909090909091
2014	25.09090909090909
2015	25.545454545454547
2016	23
2017	23.454545454545453
2018	23.454545454545453
2019	22