Year	days
2003	58.74418604651163
2004	55.125
2005	56.924528301886795
2006	54.01851851851852
2007	49.01851851851852
2008	44.333333333333336
2009	41.89090909090909
2010	39.2
2011	31.01818181818182
2012	29.903508771929825
2013	26.229999999999997
2014	24.32758620689655
2015	24.889830508474578
2016	24.347457627118644
2017	23.796610169491526
2018	23.89830508474576
2019	23.1864406779661