Year FourseamCurveChange
2013 41.51 28.30 28.30
2015 44.89 53.44 1.66
2016 52.25 44.00 3.75
2017 55.56 44.44 0.00
2018 40.18 55.36 4.46
2019 52.38 38.10 9.52