| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
0.7%
|
|
| 1 | Not effective at all | 2 |
0.7%
|
| 2 | 9 |
3%
|
|
| 3 | 8 |
2.7%
|
|
| 4 | 21 |
7%
|
|
| 5 | 35 |
11.6%
|
|
| 6 | 26 |
8.6%
|
|
| 7 | 39 |
13%
|
|
| 8 | 30 |
10%
|
|
| 9 | 13 |
4.3%
|
|
| 10 | Very effective | 18 |
6%
|
| 11 | Don't know | 98 |
32.6%
|
| Sysmiss | 6 |