| Value | Category | Cases | |
|---|---|---|---|
| -99 | 1 |
0.3%
|
|
| 1 | Not effective at all | 2 |
0.7%
|
| 2 | 0 |
0%
|
|
| 3 | 7 |
2.4%
|
|
| 4 | 9 |
3%
|
|
| 5 | 23 |
7.8%
|
|
| 6 | 39 |
13.2%
|
|
| 7 | 42 |
14.2%
|
|
| 8 | 50 |
16.9%
|
|
| 9 | 25 |
8.4%
|
|
| 10 | Very effective | 9 |
3%
|
| 11 | Don't know | 89 |
30.1%
|
| Sysmiss | 5 |