| Value | Category | Cases | |
|---|---|---|---|
| -99 | 29 |
3.9%
|
|
| 1 | Not effective at all | 28 |
3.8%
|
| 2 | 40 |
5.4%
|
|
| 3 | 49 |
6.7%
|
|
| 4 | 70 |
9.5%
|
|
| 5 | 111 |
15.1%
|
|
| 6 | 89 |
12.1%
|
|
| 7 | 83 |
11.3%
|
|
| 8 | 58 |
7.9%
|
|
| 9 | 36 |
4.9%
|
|
| 10 | Very effective | 45 |
6.1%
|
| 11 | 98 |
13.3%
|
|
| Sysmiss | 15 |