| Value | Category | Cases | |
|---|---|---|---|
| -99 | 95 |
31.8%
|
|
| 1 | Not effective at all | 18 |
6%
|
| 2 | 9 |
3%
|
|
| 3 | 18 |
6%
|
|
| 4 | 12 |
4%
|
|
| 5 | 15 |
5%
|
|
| 6 | 14 |
4.7%
|
|
| 7 | 7 |
2.3%
|
|
| 8 | 9 |
3%
|
|
| 9 | 6 |
2%
|
|
| 10 | Very effective | 35 |
11.7%
|
| 11 | Don't know | 61 |
20.4%
|
| Sysmiss | 76 |