| Value | Category | Cases | |
|---|---|---|---|
| -99 | 1 |
0.8%
|
|
| 1 | Not effective at all | 11 |
8.4%
|
| 2 | 6 |
4.6%
|
|
| 3 | 10 |
7.6%
|
|
| 4 | 10 |
7.6%
|
|
| 5 | 17 |
13%
|
|
| 6 | 12 |
9.2%
|
|
| 7 | 10 |
7.6%
|
|
| 8 | 4 |
3.1%
|
|
| 9 | 2 |
1.5%
|
|
| 10 | Very effective | 1 |
0.8%
|
| 11 | 47 |
35.9%
|
|
| Sysmiss | 13 |