Year	days
2003	46.92857142857143
2004	44.392857142857146
2005	45.56666666666667
2006	37.28125
2007	31.84375
2008	26.21875
2009	22.735294117647058
2010	21.735294117647058
2011	19.441176470588236
2012	18.441176470588236
2013	16.352941176470587
2014	15.382352941176471
2015	12.794117647058824
2016	12.470588235294118
2017	11.647058823529411
2018	10.970588235294118
2019	10.735294117647058