Year days 2003 57.40816326530612 2004 54.306603773584904 2005 57.972 2006 54.476377952755904 2007 50.21653543307087 2008 47.03543307086614 2009 44.4140625 2010 42.37109375 2011 37.3062015503876 2012 36.61742424242424 2013 30.622978723404255 2014 27.69921985815603 2015 27.514788732394365 2016 26.996971830985913 2017 25.250739436619714 2018 23.8387323943662 2019 22.964964788732395