| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
1.6%
|
|
| 1 | Not effective at all | 5 |
1.3%
|
| 2 | 6 |
1.6%
|
|
| 3 | 0 |
0%
|
|
| 4 | 8 |
2.1%
|
|
| 5 | 24 |
6.4%
|
|
| 6 | 36 |
9.7%
|
|
| 7 | 65 |
17.4%
|
|
| 8 | 60 |
16.1%
|
|
| 9 | 33 |
8.8%
|
|
| 10 | Very effective | 24 |
6.4%
|
| 11 | Don't know | 106 |
28.4%
|
| Sysmiss | 11 |