Year FourseamChangeCurve
2010 7.30 -0.58 -7.35
2011 7.01 0.00 -7.32
2012 7.42 0.00 -7.92
2013 7.52 0.00 -7.52
2014 8.20 0.00 -7.10
2015 7.94 3.31 -7.12
2016 7.78 0.00 -7.54
2017 7.80 0.00 -6.81
2018 8.21 -0.02 -5.74
2019 7.57 0.00 -5.67