| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
8.2%
|
| 2 | 10 |
7.5%
|
|
| 3 | 15 |
11.2%
|
|
| 4 | 21 |
15.7%
|
|
| 5 | 26 |
19.4%
|
|
| 6 | 16 |
11.9%
|
|
| 7 | 17 |
12.7%
|
|
| 8 | 9 |
6.7%
|
|
| 9 | 3 |
2.2%
|
|
| 10 | Very effective | 6 |
4.5%
|
| 11 | Don't know | 59 | |
| Sysmiss | 5 |