| Value | Category | Cases | |
|---|---|---|---|
| -99 | 7 |
3%
|
|
| 1 | Not effective at all | 5 |
2.2%
|
| 2 | 1 |
0.4%
|
|
| 3 | 11 |
4.7%
|
|
| 4 | 11 |
4.7%
|
|
| 5 | 21 |
9.1%
|
|
| 6 | 21 |
9.1%
|
|
| 7 | 24 |
10.3%
|
|
| 8 | 20 |
8.6%
|
|
| 9 | 19 |
8.2%
|
|
| 10 | Very effective | 18 |
7.8%
|
| 11 | Don't know | 74 |
31.9%
|
| Sysmiss | 5 |