| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
3.3%
|
|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 4 |
2.2%
|
|
| 4 | 4 |
2.2%
|
|
| 5 | 8 |
4.3%
|
|
| 6 | 24 |
13%
|
|
| 7 | 43 |
23.4%
|
|
| 8 | 27 |
14.7%
|
|
| 9 | 15 |
8.2%
|
|
| 10 | Very effective | 2 |
1.1%
|
| 11 | Don't know | 51 |
27.7%
|
| Sysmiss | 81 |