| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 8 |
3.8%
|
|
| 3 | 6 |
2.8%
|
|
| 4 | 10 |
4.7%
|
|
| 5 | 16 |
7.6%
|
|
| 6 | 9 |
4.3%
|
|
| 7 | 18 |
8.5%
|
|
| 8 | 20 |
9.5%
|
|
| 9 | 8 |
3.8%
|
|
| 10 | Very effective | 16 |
7.6%
|
| 11 | 97 |
46%
|
|
| Sysmiss | 5 |