Year	days
2003	58.157303370786515
2004	55.097938144329895
2005	59.90625
2006	56.39912280701754
2007	51.74561403508772
2008	48.00877192982456
2009	45.31739130434783
2010	43.16086956521739
2011	38.43043478260869
2012	37.54237288135593
2013	31.01698412698413
2014	27.909444444444446
2015	27.376377952755902
2016	26.472204724409448
2017	24.52759842519685
2018	22.787401574803148
2019	21.99153543307087