| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
4.9%
|
| 2 | 1 |
2.4%
|
|
| 3 | 3 |
7.3%
|
|
| 4 | 5 |
12.2%
|
|
| 5 | 2 |
4.9%
|
|
| 6 | 13 |
31.7%
|
|
| 7 | 13 |
31.7%
|
|
| 8 | 2 |
4.9%
|
|
| 10 | Very effective | 0 |
0%
|
| 11 | N/A | 68 | |
| Sysmiss | 25 |