Year	days
2003	58.651162790697676
2004	55
2005	56.79245283018868
2006	53.888888888888886
2007	48.888888888888886
2008	44.2037037037037
2009	41.763636363636365
2010	39.07272727272727
2011	30.89090909090909
2012	29.780701754385966
2013	26.109310344827588
2014	24.20689655172414
2015	24.771186440677965
2016	24.228813559322035
2017	23.694915254237287
2018	23.796610169491526
2019	23.084745762711865