| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
2%
|
|
| 1 | Not effective at all | 4 |
1.3%
|
| 2 | 2 |
0.7%
|
|
| 3 | 7 |
2.3%
|
|
| 4 | 14 |
4.7%
|
|
| 5 | 18 |
6%
|
|
| 6 | 38 |
12.8%
|
|
| 7 | 36 |
12.1%
|
|
| 8 | 41 |
13.8%
|
|
| 9 | 29 |
9.7%
|
|
| 10 | Very effective | 33 |
11.1%
|
| 11 | 70 |
23.5%
|
|
| Sysmiss | 12 |