| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
3.2%
|
| 2 | 27 |
6.7%
|
|
| 3 | 37 |
9.2%
|
|
| 4 | 51 |
12.7%
|
|
| 5 | 58 |
14.4%
|
|
| 6 | 68 |
16.9%
|
|
| 7 | 78 |
19.4%
|
|
| 8 | 32 |
8%
|
|
| 9 | 29 |
7.2%
|
|
| 10 | Very effective | 9 |
2.2%
|
| 11 | Don't know | 87 | |
| Sysmiss | 16 |