| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1.5%
|
|
| 1 | Not effective at all | 7 |
5.3%
|
| 2 | 4 |
3.1%
|
|
| 3 | 6 |
4.6%
|
|
| 4 | 9 |
6.9%
|
|
| 5 | 16 |
12.2%
|
|
| 6 | 10 |
7.6%
|
|
| 7 | 7 |
5.3%
|
|
| 8 | 11 |
8.4%
|
|
| 9 | 8 |
6.1%
|
|
| 10 | Very effective | 1 |
0.8%
|
| 11 | 50 |
38.2%
|
|
| Sysmiss | 13 |