| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1%
|
|
| 1 | Not effective at all | 9 |
4.3%
|
| 2 | 9 |
4.3%
|
|
| 3 | 8 |
3.9%
|
|
| 4 | 23 |
11.1%
|
|
| 5 | 20 |
9.7%
|
|
| 6 | 34 |
16.4%
|
|
| 7 | 25 |
12.1%
|
|
| 8 | 22 |
10.6%
|
|
| 9 | 19 |
9.2%
|
|
| 10 | Very effective | 6 |
2.9%
|
| 11 | Don't know | 30 |
14.5%
|
| Sysmiss | 18 |