| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.1%
|
| 2 | 7 |
3.7%
|
|
| 3 | 21 |
11.1%
|
|
| 4 | 11 |
5.8%
|
|
| 5 | 24 |
12.6%
|
|
| 6 | 18 |
9.5%
|
|
| 7 | 16 |
8.4%
|
|
| 8 | 15 |
7.9%
|
|
| 9 | 5 |
2.6%
|
|
| 10 | Very effective | 7 |
3.7%
|
| 11 | 64 |
33.7%
|
|
| Sysmiss | 12 |