| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 2 |
0.9%
|
|
| 3 | 3 |
1.4%
|
|
| 4 | 15 |
7.1%
|
|
| 5 | 14 |
6.6%
|
|
| 6 | 18 |
8.5%
|
|
| 7 | 18 |
8.5%
|
|
| 8 | 19 |
9%
|
|
| 9 | 14 |
6.6%
|
|
| 10 | Very effective | 22 |
10.4%
|
| 11 | 83 |
39.3%
|
|
| Sysmiss | 5 |