| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
5.4%
|
| 2 | 12 |
5.9%
|
|
| 3 | 11 |
5.4%
|
|
| 4 | 16 |
7.8%
|
|
| 5 | 27 |
13.2%
|
|
| 6 | 17 |
8.3%
|
|
| 7 | 14 |
6.8%
|
|
| 8 | 7 |
3.4%
|
|
| 9 | 11 |
5.4%
|
|
| 10 | Very effective | 11 |
5.4%
|
| 11 | 68 |
33.2%
|
|
| Sysmiss | 17 |