| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 23 |
5.1%
|
| 2 | 29 |
6.4%
|
|
| 3 | 42 |
9.3%
|
|
| 4 | 59 |
13.1%
|
|
| 5 | 86 |
19.1%
|
|
| 6 | 81 |
18%
|
|
| 7 | 44 |
9.8%
|
|
| 8 | 51 |
11.3%
|
|
| 9 | 18 |
4%
|
|
| 10 | Very effective | 18 |
4%
|
| 11 | Don't know | 197 | |
| Sysmiss | 71 |