| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
1.7%
|
|
| 1 | Not effective at all | 4 |
1.7%
|
| 2 | 4 |
1.7%
|
|
| 3 | 7 |
3%
|
|
| 4 | 3 |
1.3%
|
|
| 5 | 8 |
3.4%
|
|
| 6 | 9 |
3.9%
|
|
| 7 | 17 |
7.3%
|
|
| 8 | 17 |
7.3%
|
|
| 9 | 19 |
8.2%
|
|
| 10 | Very effective | 13 |
5.6%
|
| 11 | 128 |
54.9%
|
|
| Sysmiss | 27 |