Year days 2003 60.63157894736842 2004 59.80487804878049 2005 57.17391304347826 2006 55.65217391304348 2007 51.32608695652174 2008 49.78260869565217 2009 47.71739130434783 2010 43.82608695652174 2011 38.93478260869565 2012 37.92553191489362 2013 32.868431372549026 2014 28.849019607843136 2015 27.86862745098039 2016 27.095882352941178 2017 26.248725490196076 2018 24.635098039215688 2019 23.70980392156863