Year	days
2003	47.625
2004	52.529411764705884
2005	51.94117647058823
2006	51.05882352941177
2007	47.88235294117647
2008	47.64705882352941
2009	45.94117647058823
2010	42.76470588235294
2011	38.470588235294116
2012	39.77777777777778
2013	41.665
2014	36.2145
2015	36.1805
2016	33.31
2017	32.422000000000004
2018	30.4275
2019	29.709500000000002