| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.9%
|
| 2 | 2 |
1.9%
|
|
| 3 | 0 |
0%
|
|
| 4 | 5 |
4.7%
|
|
| 5 | 12 |
11.2%
|
|
| 6 | 12 |
11.2%
|
|
| 7 | 19 |
17.8%
|
|
| 8 | 17 |
15.9%
|
|
| 9 | 5 |
4.7%
|
|
| 10 | Very effective | 27 |
25.2%
|
| 11 | 7 |
6.5%
|
|
| Sysmiss | 2 |