| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1%
|
| 2 | 5 |
1.7%
|
|
| 3 | 14 |
4.7%
|
|
| 4 | 13 |
4.4%
|
|
| 5 | 23 |
7.8%
|
|
| 6 | 29 |
9.8%
|
|
| 7 | 32 |
10.8%
|
|
| 8 | 30 |
10.2%
|
|
| 9 | 11 |
3.7%
|
|
| 10 | Very effective | 19 |
6.4%
|
| 11 | 116 |
39.3%
|
|
| Sysmiss | 12 |