Year	days
2009	104.8695652173913
2010	103.47826086956522
2011	103.56521739130434
2012	101.87234042553192
2013	95.66196078431373
2014	95.43725490196077
2015	89.61705882352942
2016	87.03549019607843
2017	83.13980392156863
2018	77.1750980392157
2019	76.21901960784314
