| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 14 |
6.6%
|
| 2 | 6 |
2.8%
|
|
| 3 | 6 |
2.8%
|
|
| 4 | 7 |
3.3%
|
|
| 5 | 24 |
11.3%
|
|
| 6 | 24 |
11.3%
|
|
| 7 | 23 |
10.8%
|
|
| 8 | 41 |
19.3%
|
|
| 9 | 24 |
11.3%
|
|
| 10 | Very effective | 43 |
20.3%
|
| -99 | 11 | ||
| 11 | Don't know | 78 | |
| Sysmiss | 51 |