| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
3.6%
|
| 2 | 20 |
4.9%
|
|
| 3 | 62 |
15%
|
|
| 4 | 95 |
23.1%
|
|
| 5 | 95 |
23.1%
|
|
| 6 | 52 |
12.6%
|
|
| 7 | 28 |
6.8%
|
|
| 8 | 21 |
5.1%
|
|
| 9 | 15 |
3.6%
|
|
| 10 | Very effective | 9 |
2.2%
|
| 11 | Don't know | 62 | |
| Sysmiss | 4 |