Year	days
2003	643.5263157894736
2004	681.1951219512196
2005	671.2173913043479
2006	671.2173913043479
2007	669.804347826087
2008	675.4130434782609
2009	666.6086956521739
2010	663.695652173913
2011	661.3913043478261
2012	666.1914893617021
2013	701.3886274509804
2014	699.4278431372549
2015	699.4278431372549
2016	698.8592156862745
2017	696.6631372549019
2018	696.6631372549019
2019	690.7872549019609