Year FourseamChangeCurve
2010 -2.59 -2.94 -2.60
2011 -2.65 0.00 -2.55
2012 -2.72 0.00 -2.65
2013 -2.77 0.00 -2.68
2014 -2.61 0.00 -2.52
2015 -2.76 -2.89 -2.72
2016 -2.67 0.00 -2.54
2017 -2.89 0.00 -2.76
2018 -2.89 -3.23 -2.78
2019 -2.95 0.00 -2.86