| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.6%
|
| 2 | 3 |
1.3%
|
|
| 3 | 7 |
3%
|
|
| 4 | 16 |
6.8%
|
|
| 5 | 16 |
6.8%
|
|
| 6 | 21 |
9%
|
|
| 7 | 17 |
7.3%
|
|
| 8 | 21 |
9%
|
|
| 9 | 24 |
10.3%
|
|
| 10 | Very effective | 21 |
9%
|
| 11 | 82 |
35%
|
|
| Sysmiss | 24 |