| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.5%
|
| 2 | 5 |
2.1%
|
|
| 3 | 9 |
3.7%
|
|
| 4 | 21 |
8.7%
|
|
| 5 | 30 |
12.4%
|
|
| 6 | 32 |
13.2%
|
|
| 7 | 20 |
8.3%
|
|
| 8 | 21 |
8.7%
|
|
| 9 | 13 |
5.4%
|
|
| 10 | Very effective | 17 |
7%
|
| 11 | 68 |
28.1%
|
|
| Sysmiss | 16 |