Year	days
2004	180.27272727272728
2005	179
2006	128.1818181818182
2007	106.31818181818181
2008	101.72727272727273
2009	81.72727272727273
2010	48.95454545454545
2011	42.09090909090909
2012	31.727272727272727
2013	28.636363636363637
2014	27.772727272727273
2015	25.40909090909091
2016	24.045454545454547
2017	24.045454545454547
2018	28.272727272727273
2019	31.90909090909091