| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 |
1.4%
|
|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 12 |
5.8%
|
|
| 3 | 8 |
3.9%
|
|
| 4 | 20 |
9.7%
|
|
| 5 | 26 |
12.6%
|
|
| 6 | 31 |
15%
|
|
| 7 | 31 |
15%
|
|
| 8 | 20 |
9.7%
|
|
| 9 | 15 |
7.2%
|
|
| 10 | Very effective | 10 |
4.8%
|
| 11 | Don't know | 28 |
13.5%
|
| Sysmiss | 18 |