| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.8%
|
| 2 | 13 |
4.7%
|
|
| 3 | 10 |
3.6%
|
|
| 4 | 11 |
4%
|
|
| 5 | 32 |
11.5%
|
|
| 6 | 9 |
3.2%
|
|
| 7 | 26 |
9.4%
|
|
| 8 | 21 |
7.6%
|
|
| 9 | 12 |
4.3%
|
|
| 10 | Very effective | 21 |
7.6%
|
| 11 | 118 |
42.4%
|
|
| Sysmiss | 29 |