| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 25 |
9.6%
|
| 2 | 17 |
6.5%
|
|
| 3 | 21 |
8%
|
|
| 4 | 42 |
16.1%
|
|
| 5 | 16 |
6.1%
|
|
| 6 | 15 |
5.7%
|
|
| 7 | 19 |
7.3%
|
|
| 8 | 13 |
5%
|
|
| 9 | 12 |
4.6%
|
|
| 10 | Very effective | 29 |
11.1%
|
| 11 | Don't know | 52 |
19.9%
|
| Sysmiss | 44 |