| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.8%
|
| 2 | 4 |
3%
|
|
| 3 | 11 |
8.3%
|
|
| 4 | 10 |
7.6%
|
|
| 5 | 14 |
10.6%
|
|
| 6 | 11 |
8.3%
|
|
| 7 | 9 |
6.8%
|
|
| 8 | 6 |
4.5%
|
|
| 9 | 4 |
3%
|
|
| 10 | Very effective | 3 |
2.3%
|
| 11 | 55 |
41.7%
|
|
| Sysmiss | 12 |