Year	days
2003	576.625
2004	641.5294117647059
2005	636.7647058823529
2006	636.7647058823529
2007	627.3529411764706
2008	628.4705882352941
2009	606.1176470588235
2010	599.0588235294117
2011	589.6470588235294
2012	621
2013	610.2625
2014	610.2625
2015	610.2625
2016	610.2625
2017	605.8725000000001
2018	605.8725000000001
2019	605.8725000000001