A.30%~40%,10%~15% B.45%~50%,15%~20% C.50%~60%,20%~25% D.60%~70%,25%~30% E.80%~90%,25%~30%
A.40%以下 B.40%~54% C.55%~70% D.70%~80% E.80%以上
A.5% B.10% C.15% D.20% E.25%