| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2.6%
|
|
| 1 | Not effective at all | 5 |
1.6%
|
| 2 | 9 |
2.9%
|
|
| 3 | 13 |
4.2%
|
|
| 4 | 19 |
6.1%
|
|
| 5 | 35 |
11.3%
|
|
| 6 | 26 |
8.4%
|
|
| 7 | 36 |
11.7%
|
|
| 8 | 15 |
4.9%
|
|
| 9 | 4 |
1.3%
|
|
| 10 | Very effective | 5 |
1.6%
|
| 11 | Don’t know | 104 |
33.7%
|
| Sysmiss | 30 |
9.7%
|