| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 |
2.3%
|
|
| 1 | Not effective at all | 10 |
7.6%
|
| 2 | 4 |
3.1%
|
|
| 3 | 8 |
6.1%
|
|
| 4 | 9 |
6.9%
|
|
| 5 | 12 |
9.2%
|
|
| 6 | 15 |
11.5%
|
|
| 7 | 10 |
7.6%
|
|
| 8 | 8 |
6.1%
|
|
| 9 | 4 |
3.1%
|
|
| 10 | Very effective | 5 |
3.8%
|
| 11 | 43 |
32.8%
|
|
| Sysmiss | 13 |