Year	days
2005	206.23809523809524
2006	201.45454545454547
2007	199
2008	192.6818181818182
2009	188.13636363636363
2010	179.8181818181818
2011	180.04545454545453
2012	174.43478260869566
2013	166.22727272727272
2014	158.27272727272728
2015	155.3181818181818
2016	152.9047619047619
2017	150.52380952380952
2018	149.71428571428572
2019	149.02380952380952