| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.4%
|
| 2 | 6 |
3.3%
|
|
| 3 | 9 |
4.9%
|
|
| 4 | 18 |
9.9%
|
|
| 5 | 27 |
14.8%
|
|
| 6 | 23 |
12.6%
|
|
| 7 | 27 |
14.8%
|
|
| 8 | 32 |
17.6%
|
|
| 9 | 20 |
11%
|
|
| 10 | Very effective | 12 |
6.6%
|
| 11 | Don't know | 41 | |
| Sysmiss | 39 |