Year	days
2003	82.64285714285714
2004	75.21428571428571
2005	87.65
2006	83.7
2007	76.475
2008	75.525
2009	72.5
2010	68.35
2011	68
2012	67.25
2013	39.59090909090909
2014	33.36363636363637
2015	32.60909090909091
2016	31.813636363636363
2017	31.45
2018	26.75
2019	26.431818181818183