| Value | Category | Cases | |
|---|---|---|---|
| -99 | 13 |
6.1%
|
|
| 1 | Not effective at all | 4 |
1.9%
|
| 2 | 5 |
2.3%
|
|
| 3 | 5 |
2.3%
|
|
| 4 | 15 |
7%
|
|
| 5 | 17 |
8%
|
|
| 6 | 20 |
9.4%
|
|
| 7 | 18 |
8.5%
|
|
| 8 | 9 |
4.2%
|
|
| 9 | 13 |
6.1%
|
|
| 10 | Very effective | 7 |
3.3%
|
| 11 | Don't know | 87 |
40.8%
|
| Sysmiss | 7 |