Year FourseamSliderCurve
2007 -1.92 -2.05 -1.90
2008 -1.98 -2.02 -1.86
2009 -2.01 -2.14 -2.03
2010 -1.79 -1.98 -1.92
2011 -1.63 -1.84 -1.84
2012 -1.43 -1.74 -1.61
2013 -1.58 -1.90 -1.72