Year days 2003 39.5 2004 31.4 2005 31.4 2006 31.4 2007 28 2008 28 2009 28.4 2010 27.2 2011 24 2012 19.2 2013 18.81125 2014 17.1875 2015 16.4375 2016 16.12125 2017 16.033125 2018 13.99625 2019 14.49625