| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
4.8%
|
| 2 | 18 |
7.1%
|
|
| 3 | 10 |
4%
|
|
| 4 | 20 |
7.9%
|
|
| 5 | 27 |
10.7%
|
|
| 6 | 17 |
6.7%
|
|
| 7 | 30 |
11.9%
|
|
| 8 | 27 |
10.7%
|
|
| 9 | 7 |
2.8%
|
|
| 10 | Very effective | 15 |
6%
|
| 11 | 69 |
27.4%
|
|
| Sysmiss | 12 |