Year days 2009 94.51428571428572 2010 94.08571428571429 2011 93.35135135135135 2012 88.15789473684211 2013 97.1842105263158 2014 83.02631578947368 2015 80.13157894736842 2016 76.42105263157895 2017 74.97368421052632 2018 74.6842105263158 2019 73.52631578947368