-1=if (group.getLength()<=16.2) return 0.0;else if (group.getLength()<=19.3) return 0.30;else if (group.getLength()<=23) return 0.22;else if (group.getLength()<=30) return 0.20;else return 0;
1=if (group.getLength()<=16.2) return 0.0;else if (group.getLength()<=19.3) return 0.456;else if (group.getLength()<=23) return 0.52;else if (group.getLength()<=30) return 0.30;else return 0;