| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 6 |
2.8%
|
|
| 3 | 12 |
5.7%
|
|
| 4 | 8 |
3.8%
|
|
| 5 | 11 |
5.2%
|
|
| 6 | 15 |
7.1%
|
|
| 7 | 6 |
2.8%
|
|
| 8 | 11 |
5.2%
|
|
| 9 | 13 |
6.1%
|
|
| 10 | Very effective | 19 |
9%
|
| 11 | 108 |
50.9%
|
|
| Sysmiss | 4 |