Year	days
2003	643.75
2004	711.2758620689655
2005	730.2727272727273
2006	746.1470588235294
2007	746.1470588235294
2008	759.7647058823529
2009	747
2010	743.9117647058823
2011	743.9117647058823
2012	729.2571428571429
2013	716.1852777777777
2014	713.4074999999999
2015	706.964054054054
2016	709.3964864864864
2017	701.2883783783783
2018	699.9370270270269
2019	690.2162162162163