| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
0.9%
|
| 2 | 4 |
1.9%
|
|
| 3 | 10 |
4.7%
|
|
| 4 | 7 |
3.3%
|
|
| 5 | 15 |
7.1%
|
|
| 6 | 14 |
6.6%
|
|
| 7 | 17 |
8%
|
|
| 8 | 12 |
5.7%
|
|
| 9 | 11 |
5.2%
|
|
| 10 | Very effective | 21 |
9.9%
|
| 11 | 99 |
46.7%
|
|
| Sysmiss | 4 |