Year	days
2005	215.01351351351352
2006	211.0486725663717
2007	210.7920353982301
2008	207.0929203539823
2009	197.58333333333334
2010	191.35526315789474
2011	184.77433628318585
2012	178.73478260869564
2013	171.24024590163935
2014	167.07162601626018
2015	165.10500000000002
2016	161.02360655737706
2017	159.07959016393443
2018	155.60442622950822
2019	152.3272131147541