| Value | Category | Cases | |
|---|---|---|---|
| -99 | 88 |
29.6%
|
|
| 1 | Not effective at all | 20 |
6.7%
|
| 2 | 12 |
4%
|
|
| 3 | 15 |
5.1%
|
|
| 4 | 17 |
5.7%
|
|
| 5 | 17 |
5.7%
|
|
| 6 | 13 |
4.4%
|
|
| 7 | 9 |
3%
|
|
| 8 | 8 |
2.7%
|
|
| 9 | 9 |
3%
|
|
| 10 | Very effective | 37 |
12.5%
|
| 11 | Don't know | 52 |
17.5%
|
| Sysmiss | 78 |