| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| * | * | * | * | * | * | * | * |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| * | * | * | * | * | * | * | * |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| * | * | * | * | * | * | * | * |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 16 | 8 | 3 | 2 | 2 | 0 | 0 | 5.13 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 19 | 12 | 1 | 6 | 0 | 0 | 0 | 5.32 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 4 | 4 | 0 | 0 | 0 | 0 | 0 | 6.00 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 12 | 6 | 4 | 2 | 0 | 0 | 0 | 5.33 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 28 | 9 | 14 | 5 | 0 | 0 | 0 | 5.14 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 21 | 9 | 8 | 4 | 0 | 0 | 0 | 5.24 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 29 | 15 | 5 | 5 | 4 | 0 | 0 | 5.07 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 29 | 17 | 9 | 2 | 0 | 1 | 0 | 5.41 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 27 | 17 | 7 | 3 | 0 | 0 | 0 | 5.52 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 13 | 7 | 5 | 1 | 0 | 0 | 0 | 5.46 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 4 | 4 | 0 | 0 | 0 | 0 | 0 | 6.00 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 23 | 12 | 8 | 3 | 0 | 0 | 0 | 5.39 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 18 | 9 | 6 | 3 | 0 | 0 | 0 | 5.33 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 25 | 12 | 8 | 2 | 2 | 0 | 1 | 5.08 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 23 | 11 | 9 | 2 | 1 | 0 | 0 | 5.30 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 14 | 5 | 4 | 3 | 1 | 1 | 0 | 4.79 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 23 | 16 | 5 | 0 | 1 | 1 | 0 | 5.48 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 8 | 7 | 1 | 0 | 0 | 0 | 0 | 5.87 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 30 | 20 | 7 | 2 | 0 | 1 | 0 | 5.50 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 13 | 4 | 8 | 1 | 0 | 0 | 0 | 5.23 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 19 | 9 | 8 | 2 | 0 | 0 | 0 | 5.37 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 19 | 5 | 12 | 2 | 0 | 0 | 0 | 5.08 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 9 | 6 | 2 | 1 | 0 | 0 | 0 | 5.56 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 12 | 10 | 2 | 0 | 0 | 0 | 0 | 5.83 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 5 | 5 | 0 | 0 | 0 | 0 | 0 | 6.00 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 17 | 14 | 3 | 0 | 0 | 0 | 0 | 5.82 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 5 | 4 | 1 | 0 | 0 | 0 | 0 | 5.80 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 18 | 9 | 5 | 3 | 1 | 0 | 0 | 5.22 |
| No. of forms | 6 | 5 | 4 | 3 | 2 | 1 | MEAN |
| 4 | 4 | 0 | 0 | 0 | 0 | 0 | 6.00 |