Year	days
2005	187.02941176470588
2006	184.11428571428573
2007	183.71428571428572
2008	182.14285714285714
2009	176.94285714285715
2010	174.24285714285713
2011	168.24285714285713
2012	157.67142857142858
2013	149.21052631578948
2014	149.44736842105263
2015	149.9078947368421
2016	149.47552631578947
2017	147.93605263157895
2018	148.14657894736843
2019	148.13342105263158