Year FourseamChangeSliderCurve
2009 29.71 20.69 18.00 9.09
2010 29.09 50.00 15.38 35.00
2011 32.85 38.46 32.23 25.35
2012 28.77 26.32 22.88 16.44
2013 21.32 21.82 22.69 20.51
2014 18.07 20.69 23.64 15.56
2015 19.53 0.00 17.48 13.85