Year	days
2005	219.30232558139534
2006	214.79545454545453
2007	215.20454545454547
2008	216.4090909090909
2009	209.38636363636363
2010	200.29545454545453
2011	195.8409090909091
2012	188.17777777777778
2013	169.7128260869565
2014	165.66934782608695
2015	164.84326086956523
2016	159.45195652173913
2017	148.82152173913045
2018	147.4954347826087
2019	145.43021739130435