Year	days
2005	201.6
2006	199.55
2007	196.25
2008	188.4
2009	182.3
2010	177.6
2011	171.975
2012	169.475
2013	169.56454545454545
2014	167.63272727272727
2015	166.29181818181817
2016	166.81772727272727
2017	179.63590909090908
2018	178.49954545454545
2019	176.3631818181818