Year	days
2005	138.86666666666667
2006	140.09375
2007	141.38235294117646
2008	155.45714285714286
2009	155.77142857142857
2010	155.77142857142857
2011	159.16216216216216
2012	158.98684210526315
2013	156.82894736842104
2014	155.85526315789474
2015	151.48684210526315
2016	147.22368421052633
2017	145.46052631578948
2018	144.35526315789474
2019	140.42105263157896