| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 5 |
2.3%
|
|
| 3 | 9 |
4.2%
|
|
| 4 | 15 |
7%
|
|
| 5 | 12 |
5.6%
|
|
| 6 | 14 |
6.6%
|
|
| 7 | 22 |
10.3%
|
|
| 8 | 16 |
7.5%
|
|
| 9 | 10 |
4.7%
|
|
| 10 | Very effective | 23 |
10.8%
|
| 11 | 84 |
39.4%
|
|
| Sysmiss | 3 |