| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2.6%
|
|
| 1 | Not effective at all | 6 |
1.9%
|
| 2 | 2 |
0.6%
|
|
| 3 | 7 |
2.3%
|
|
| 4 | 17 |
5.5%
|
|
| 5 | 21 |
6.8%
|
|
| 6 | 36 |
11.7%
|
|
| 7 | 27 |
8.7%
|
|
| 8 | 38 |
12.3%
|
|
| 9 | 14 |
4.5%
|
|
| 10 | Very effective | 8 |
2.6%
|
| 11 | Don’t know | 92 |
29.8%
|
| Sysmiss | 33 |
10.7%
|