| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
6.1%
|
| 2 | 6 |
4.5%
|
|
| 3 | 12 |
9.1%
|
|
| 4 | 15 |
11.4%
|
|
| 5 | 21 |
15.9%
|
|
| 6 | 16 |
12.1%
|
|
| 7 | 18 |
13.6%
|
|
| 8 | 13 |
9.8%
|
|
| 9 | 14 |
10.6%
|
|
| 10 | Very effective | 9 |
6.8%
|
| -99 | 22 | ||
| 11 | Don't know | 75 | |
| Sysmiss | 25 |