| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.2%
|
| 2 | 17 |
4.2%
|
|
| 3 | 36 |
9%
|
|
| 4 | 47 |
11.7%
|
|
| 5 | 64 |
15.9%
|
|
| 6 | 69 |
17.2%
|
|
| 7 | 80 |
19.9%
|
|
| 8 | 51 |
12.7%
|
|
| 9 | 23 |
5.7%
|
|
| 10 | Very effective | 10 |
2.5%
|
| 11 | Don't know | 84 | |
| Sysmiss | 19 |