A.>10% B.>20% C.>25% D.>40% E.>60%
A.≥10% B.≥30% C.≥75% D.≥90% E.≥95%
A.5.5~6.0 B.6.2~6.6 C.6.8~7.2 D.7.2~7.8 E.8.0~8.3