Level

N

Grade 0

Grade 1

Grade 2

Grade 3

Medial

Lateral

Both

All lateral

All lateral

T1

2

2

0

0

0

0

0

T2

18

8

1

2

3

3

1

T3

19

0

1

7

5

2

4

T4

25

0

3

15

4

2

1

T5

28

4

2

8

11

2

1

T6

11

2

1

6

2

0

0

T7

6

1

1

3

1

0

0

Total

109

17

9

41

26

9

7