| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
5.9%
|
| 2 | 13 |
6.4%
|
|
| 3 | 21 |
10.3%
|
|
| 4 | 12 |
5.9%
|
|
| 5 | 22 |
10.8%
|
|
| 6 | 11 |
5.4%
|
|
| 7 | 9 |
4.4%
|
|
| 8 | 7 |
3.4%
|
|
| 9 | 7 |
3.4%
|
|
| 10 | Very effective | 10 |
4.9%
|
| 11 | 79 |
38.9%
|
|
| Sysmiss | 19 |