Year	days
2003	640.4375
2004	656.7777777777778
2005	686
2006	699.2727272727273
2007	697.7954545454545
2008	708.3181818181819
2009	694.4772727272727
2010	691.7045454545455
2011	691.7045454545455
2012	674.6666666666666
2013	665.1232608695652
2014	662.7319565217391
2015	658.737659574468
2016	662.5674468085106
2017	658.737659574468
2018	657.0568085106382
2019	649.4042553191489