| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
5.6%
|
| 3 | 1 |
2.8%
|
|
| 5 | 1 |
2.8%
|
|
| 6 | 2 |
5.6%
|
|
| 7 | 9 |
25%
|
|
| 8 | 5 |
13.9%
|
|
| 9 | 9 |
25%
|
|
| 10 | Very effective | 7 |
19.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 93 |