| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
5.6%
|
| 2 | 4 |
5.6%
|
|
| 3 | 8 |
11.1%
|
|
| 4 | 7 |
9.7%
|
|
| 5 | 19 |
26.4%
|
|
| 6 | 11 |
15.3%
|
|
| 7 | 13 |
18.1%
|
|
| 8 | 4 |
5.6%
|
|
| 9 | 1 |
1.4%
|
|
| 10 | Very effective | 1 |
1.4%
|
| 11 | N/A | 122 | |
| Sysmiss | 4 |