| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
2.6%
|
| 2 | 19 |
4.6%
|
|
| 3 | 29 |
7%
|
|
| 4 | 32 |
7.7%
|
|
| 5 | 90 |
21.6%
|
|
| 6 | 81 |
19.4%
|
|
| 7 | 72 |
17.3%
|
|
| 8 | 44 |
10.6%
|
|
| 9 | 26 |
6.2%
|
|
| 10 | Very effective | 13 |
3.1%
|
| 11 | Don't know | 76 | |
| Sysmiss | 12 |