Year	days
2005	228.95454545454547
2006	228.95454545454547
2007	232.77272727272728
2008	230.4090909090909
2009	230.77272727272728
2010	220
2011	207.63636363636363
2012	203.95454545454547
2013	198.95454545454547
2014	179.45454545454547
2015	186
2016	185.9090909090909
2017	183.27272727272728
2018	181.36363636363637
2019	181.36363636363637