| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
2.6%
|
| 2 | 3 |
2.6%
|
|
| 3 | 9 |
7.7%
|
|
| 4 | 7 |
6%
|
|
| 5 | 7 |
6%
|
|
| 6 | 17 |
14.5%
|
|
| 7 | 27 |
23.1%
|
|
| 8 | 30 |
25.6%
|
|
| 9 | 9 |
7.7%
|
|
| 10 | Very effective | 5 |
4.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 93 |