| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 22 |
4.9%
|
| 2 | 24 |
5.4%
|
|
| 3 | 28 |
6.3%
|
|
| 4 | 50 |
11.2%
|
|
| 5 | 79 |
17.7%
|
|
| 6 | 71 |
15.9%
|
|
| 7 | 85 |
19.1%
|
|
| 8 | 52 |
11.7%
|
|
| 9 | 28 |
6.3%
|
|
| 10 | Very effective | 7 |
1.6%
|
| 11 | Don't know | 45 | |
| Sysmiss | 14 |