| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 17 |
15.2%
|
| 2 | 3 |
2.7%
|
|
| 3 | 13 |
11.6%
|
|
| 4 | 12 |
10.7%
|
|
| 5 | 18 |
16.1%
|
|
| 6 | 21 |
18.8%
|
|
| 7 | 12 |
10.7%
|
|
| 8 | 6 |
5.4%
|
|
| 9 | 5 |
4.5%
|
|
| 10 | Very effective | 5 |
4.5%
|
| 11 | Don't know | 130 | |
| Sysmiss | 84 |