| Value | Category | Cases | |
|---|---|---|---|
| -99 | 7 |
2.3%
|
|
| 1 | Not effective at all | 12 |
4%
|
| 2 | 17 |
5.7%
|
|
| 3 | 11 |
3.7%
|
|
| 4 | 21 |
7%
|
|
| 5 | 22 |
7.4%
|
|
| 6 | 18 |
6%
|
|
| 7 | 21 |
7%
|
|
| 8 | 19 |
6.4%
|
|
| 9 | 9 |
3%
|
|
| 10 | Very effective | 31 |
10.4%
|
| 11 | Don't know | 111 |
37.1%
|
| Sysmiss | 27 |