| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
4.3%
|
| 2 | 5 |
4.3%
|
|
| 3 | 7 |
6%
|
|
| 4 | 7 |
6%
|
|
| 5 | 11 |
9.4%
|
|
| 6 | 18 |
15.4%
|
|
| 7 | 18 |
15.4%
|
|
| 8 | 28 |
23.9%
|
|
| 9 | 11 |
9.4%
|
|
| 10 | Very effective | 7 |
6%
|
| -99 | 13 | ||
| 11 | Don't know | 99 | |
| Sysmiss | 25 |