Year	days
2003	603.2352941176471
2004	595.4705882352941
2005	589.4705882352941
2006	564.5555555555555
2007	564.5555555555555
2008	577.7894736842105
2009	589.8947368421053
2010	593.578947368421
2011	602.4
2012	610.95
2013	632.35
2014	675.85
2015	662.35
2016	669.9
2017	669.9
2018	669.9
2019	669.9