Year	days
2004	99.4041095890411
2005	93.01744186046511
2006	88.316091954023
2007	80.91379310344827
2008	72.91954022988506
2009	66.82386363636364
2010	60.71348314606742
2011	56.92696629213483
2012	57.044444444444444
2013	57.10826530612245
2014	54.34979591836734
2015	53.46204081632653
2016	52.92586734693877
2017	52.61637755102041
2018	52.26168367346939
2019	51.28352040816327