Year	days
2003	629.7241379310345
2004	670.4411764705883
2005	694.7837837837837
2006	709.921052631579
2007	708.2105263157895
2008	715.6842105263158
2009	706.7631578947369
2010	705.9473684210526
2011	703.0263157894736
2012	702.3157894736842
2013	703.578947368421
2014	700.9473684210526
2015	695.1538461538462
2016	696.7179487179487
2017	692.1025641025641
2018	690.8205128205128
2019	683