| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
5.2%
|
|
| 1 | Not effective at all | 7 |
3.7%
|
| 2 | 6 |
3.1%
|
|
| 3 | 7 |
3.7%
|
|
| 4 | 12 |
6.3%
|
|
| 5 | 20 |
10.5%
|
|
| 6 | 25 |
13.1%
|
|
| 7 | 27 |
14.1%
|
|
| 8 | 17 |
8.9%
|
|
| 9 | 11 |
5.8%
|
|
| 10 | Very effective | 2 |
1%
|
| 11 | 47 |
24.6%
|
|
| Sysmiss | 12 |