| Value | Category | Cases | |
|---|---|---|---|
| -99 | 18 |
3.8%
|
|
| 1 | Not effective at all | 8 |
1.7%
|
| 2 | 14 |
2.9%
|
|
| 3 | 26 |
5.4%
|
|
| 4 | 39 |
8.1%
|
|
| 5 | 68 |
14.2%
|
|
| 6 | 70 |
14.6%
|
|
| 7 | 68 |
14.2%
|
|
| 8 | 28 |
5.8%
|
|
| 9 | 14 |
2.9%
|
|
| 10 | Very effective | 9 |
1.9%
|
| 11 | 118 |
24.6%
|
|
| Sysmiss | 17 |