| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.6%
|
| 2 | 4 |
1.7%
|
|
| 3 | 8 |
3.4%
|
|
| 4 | 9 |
3.8%
|
|
| 5 | 20 |
8.5%
|
|
| 6 | 14 |
6%
|
|
| 7 | 17 |
7.3%
|
|
| 8 | 26 |
11.1%
|
|
| 9 | 21 |
9%
|
|
| 10 | Very effective | 42 |
17.9%
|
| 11 | 67 |
28.6%
|
|
| Sysmiss | 24 |