| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 |
1%
|
|
| 1 | Not effective at all | 15 |
5%
|
| 2 | 18 |
6%
|
|
| 3 | 24 |
8%
|
|
| 4 | 19 |
6.3%
|
|
| 5 | 23 |
7.7%
|
|
| 6 | 27 |
9%
|
|
| 7 | 13 |
4.3%
|
|
| 8 | 15 |
5%
|
|
| 9 | 12 |
4%
|
|
| 10 | Very effective | 23 |
7.7%
|
| 11 | Don't know | 108 |
36%
|
| Sysmiss | 26 |