| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
11.4%
|
| 2 | 6 |
8.6%
|
|
| 3 | 7 |
10%
|
|
| 4 | 7 |
10%
|
|
| 5 | 10 |
14.3%
|
|
| 6 | 7 |
10%
|
|
| 7 | 6 |
8.6%
|
|
| 8 | 10 |
14.3%
|
|
| 9 | 6 |
8.6%
|
|
| 10 | Very effective | 3 |
4.3%
|
| -99 | 15 | ||
| 11 | Don't know | 82 | |
| Sysmiss | 16 |