| Value | Category | Cases | |
|---|---|---|---|
| -99 | 17 |
3.6%
|
|
| 1 | Not effective at all | 10 |
2.1%
|
| 2 | 14 |
2.9%
|
|
| 3 | 22 |
4.6%
|
|
| 4 | 35 |
7.3%
|
|
| 5 | 59 |
12.3%
|
|
| 6 | 55 |
11.5%
|
|
| 7 | 41 |
8.6%
|
|
| 8 | 33 |
6.9%
|
|
| 9 | 8 |
1.7%
|
|
| 10 | Very effective | 11 |
2.3%
|
| 11 | 173 |
36.2%
|
|
| Sysmiss | 19 |