1=if (group.getLength()<=6.125) return 0.0;else if (group.getLength()<=8.75)return  0.08;else if (group.getLength()<=11.62)return  0.86;else if (group.getLength()<=12.75)return  0.06;else return 0;
2=if (group.getLength()<=7.35) return 0.0;else if (group.getLength()<=10.5)return  0.08;else if (group.getLength()<=13.95)return  0.86;else if (group.getLength()<=15.3)return  0.06;else return  0;
