| Value | Category | Cases | |
|---|---|---|---|
| -99 | 7 |
2.3%
|
|
| 1 | Not effective at all | 19 |
6.4%
|
| 2 | 23 |
7.7%
|
|
| 3 | 34 |
11.4%
|
|
| 4 | 23 |
7.7%
|
|
| 5 | 23 |
7.7%
|
|
| 6 | 20 |
6.7%
|
|
| 7 | 21 |
7%
|
|
| 8 | 6 |
2%
|
|
| 9 | 8 |
2.7%
|
|
| 10 | Very effective | 13 |
4.4%
|
| 11 | Don't know | 101 |
33.9%
|
| Sysmiss | 28 |