| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
4%
|
|
| 1 | Not effective at all | 1 |
1%
|
| 2 | 2 |
2%
|
|
| 3 | 1 |
1%
|
|
| 4 | 2 |
2%
|
|
| 5 | 9 |
9%
|
|
| 6 | 5 |
5%
|
|
| 7 | 5 |
5%
|
|
| 8 | 16 |
16%
|
|
| 9 | 10 |
10%
|
|
| 10 | Very effective | 24 |
24%
|
| 11 | 21 |
21%
|
|
| Sysmiss | 9 |