| Value | Category | Cases | |
|---|---|---|---|
| -99 | 5 |
1.7%
|
|
| 1 | Not effective at all | 7 |
2.3%
|
| 2 | 7 |
2.3%
|
|
| 3 | 5 |
1.7%
|
|
| 4 | 11 |
3.7%
|
|
| 5 | 36 |
12%
|
|
| 6 | 27 |
9%
|
|
| 7 | 48 |
16.1%
|
|
| 8 | 27 |
9%
|
|
| 9 | 32 |
10.7%
|
|
| 10 | Very effective | 34 |
11.4%
|
| 11 | 60 |
20.1%
|
|
| Sysmiss | 11 |