| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
3.4%
|
|
| 1 | Not effective at all | 6 |
2.5%
|
| 2 | 4 |
1.7%
|
|
| 3 | 2 |
0.8%
|
|
| 4 | 5 |
2.1%
|
|
| 5 | 12 |
5.1%
|
|
| 6 | 11 |
4.6%
|
|
| 7 | 15 |
6.3%
|
|
| 8 | 23 |
9.7%
|
|
| 9 | 11 |
4.6%
|
|
| 10 | Very effective | 4 |
1.7%
|
| 11 | 136 |
57.4%
|
|
| Sysmiss | 23 |