| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1%
|
|
| 1 | Not effective at all | 3 |
1.5%
|
| 2 | 7 |
3.4%
|
|
| 3 | 8 |
3.9%
|
|
| 4 | 27 |
13.2%
|
|
| 5 | 31 |
15.1%
|
|
| 6 | 24 |
11.7%
|
|
| 7 | 32 |
15.6%
|
|
| 8 | 21 |
10.2%
|
|
| 9 | 14 |
6.8%
|
|
| 10 | Very effective | 2 |
1%
|
| 11 | Don't know | 34 |
16.6%
|
| Sysmiss | 20 |