| Value | Category | Cases | |
|---|---|---|---|
| -99 | 13 |
2.7%
|
|
| 1 | Not effective at all | 15 |
3.1%
|
| 2 | 16 |
3.3%
|
|
| 3 | 26 |
5.4%
|
|
| 4 | 38 |
7.9%
|
|
| 5 | 75 |
15.6%
|
|
| 6 | 69 |
14.4%
|
|
| 7 | 56 |
11.7%
|
|
| 8 | 24 |
5%
|
|
| 9 | 13 |
2.7%
|
|
| 10 | Very effective | 11 |
2.3%
|
| 11 | 124 |
25.8%
|
|
| Sysmiss | 17 |