| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
1.4%
|
|
| 1 | Not effective at all | 5 |
1.8%
|
| 2 | 11 |
4%
|
|
| 3 | 9 |
3.3%
|
|
| 4 | 18 |
6.5%
|
|
| 5 | 16 |
5.8%
|
|
| 6 | 33 |
12%
|
|
| 7 | 35 |
12.7%
|
|
| 8 | 26 |
9.4%
|
|
| 9 | 17 |
6.2%
|
|
| 10 | Very effective | 13 |
4.7%
|
| 11 | Don't know | 89 |
32.2%
|
| Sysmiss | 3 |