| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
8.5%
|
| 2 | 4 |
3.4%
|
|
| 3 | 6 |
5.1%
|
|
| 4 | 3 |
2.5%
|
|
| 5 | 6 |
5.1%
|
|
| 6 | 13 |
11%
|
|
| 7 | 18 |
15.3%
|
|
| 8 | 7 |
5.9%
|
|
| 9 | 12 |
10.2%
|
|
| 10 | Very effective | 11 |
9.3%
|
| 11 | Don't know | 28 |
23.7%
|
| Sysmiss | 46 |