| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 30 |
8.5%
|
| 2 | 36 |
10.1%
|
|
| 3 | 63 |
17.7%
|
|
| 4 | 76 |
21.4%
|
|
| 5 | 82 |
23.1%
|
|
| 6 | 36 |
10.1%
|
|
| 7 | 18 |
5.1%
|
|
| 8 | 5 |
1.4%
|
|
| 9 | 3 |
0.8%
|
|
| 10 | Very effective | 6 |
1.7%
|
| 11 | Don't know | 119 | |
| Sysmiss | 4 |