| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1%
|
|
| 1 | Not effective at all | 8 |
3.9%
|
| 2 | 4 |
2%
|
|
| 3 | 6 |
3%
|
|
| 4 | 20 |
9.9%
|
|
| 5 | 21 |
10.3%
|
|
| 6 | 31 |
15.3%
|
|
| 7 | 23 |
11.3%
|
|
| 8 | 23 |
11.3%
|
|
| 9 | 18 |
8.9%
|
|
| 10 | Very effective | 21 |
10.3%
|
| 11 | Don't know | 26 |
12.8%
|
| Sysmiss | 22 |