A*16 A*15 A*14 A*13 A*12 A*11 A*10 A*9 A*8 A*7 A*6 A*5 Total grade A B*11 B*10 B*9 B*8 B*7 B*6 B*5 B*4 B*3 Total grade B C*7 C*6 C*5 C*4 C*3 C*2 C*1 Total grade C D*5 D*4 D*3 D*2 Total grade D Total Staff