| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
8.1%
|
| 2 | 12 |
10.8%
|
|
| 3 | 17 |
15.3%
|
|
| 4 | 19 |
17.1%
|
|
| 5 | 28 |
25.2%
|
|
| 6 | 11 |
9.9%
|
|
| 7 | 9 |
8.1%
|
|
| 8 | 3 |
2.7%
|
|
| 10 | Very effective | 3 |
2.7%
|
| 11 | Don't know | 78 | |
| Sysmiss | 9 |