| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
4.4%
|
| 2 | 5 |
1.8%
|
|
| 3 | 9 |
3.3%
|
|
| 4 | 13 |
4.7%
|
|
| 5 | 31 |
11.3%
|
|
| 6 | 16 |
5.8%
|
|
| 7 | 25 |
9.1%
|
|
| 8 | 24 |
8.7%
|
|
| 9 | 12 |
4.4%
|
|
| 10 | Very effective | 17 |
6.2%
|
| 11 | 111 |
40.4%
|
|
| Sysmiss | 32 |