| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
7.6%
|
| 2 | 1 |
1.3%
|
|
| 3 | 5 |
6.3%
|
|
| 4 | 3 |
3.8%
|
|
| 5 | 8 |
10.1%
|
|
| 6 | 9 |
11.4%
|
|
| 7 | 16 |
20.3%
|
|
| 8 | 15 |
19%
|
|
| 9 | 11 |
13.9%
|
|
| 10 | Very effective | 5 |
6.3%
|
| -99 | 8 | ||
| 11 | Don't know | 55 | |
| Sysmiss | 18 |