S5

10.5

14

12

13

13.5

12.6

S6

10.5

11

12

12

14.5

12.0

S7

11.5

16

10

10

10

11.5

S8

10.5

13.5

12

16

12

12.8

S9

11.5

10

13

10

10

10.9

S10

13

16

14

10

10

12.6

S11

13.5

10

11

10

10

10.9

S12

9

16

10

10

11

11.2

Total average

12.6

Standard deviation

1.6

n

12