Year FourseamChangeCurve
2014 94.87 84.64 81.91
2015 95.42 85.88 83.60
2016 94.15 85.64 81.11
2017 96.39 86.17 83.64
2018 95.86 87.35 82.83
2019 95.81 88.28 82.37