| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
2.2%
|
| 2 | 6 |
4.3%
|
|
| 3 | 12 |
8.7%
|
|
| 4 | 11 |
8%
|
|
| 5 | 16 |
11.6%
|
|
| 6 | 35 |
25.4%
|
|
| 7 | 20 |
14.5%
|
|
| 8 | 23 |
16.7%
|
|
| 9 | 7 |
5.1%
|
|
| 10 | Very effective | 5 |
3.6%
|
| -99 | 13 | ||
| 11 | Don't know | 78 | |
| Sysmiss | 25 |