| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
1.3%
|
|
| 1 | Not effective at all | 2 |
0.7%
|
| 2 | 8 |
2.6%
|
|
| 3 | 10 |
3.3%
|
|
| 4 | 13 |
4.2%
|
|
| 5 | 31 |
10.1%
|
|
| 6 | 41 |
13.4%
|
|
| 7 | 39 |
12.7%
|
|
| 8 | 40 |
13%
|
|
| 9 | 31 |
10.1%
|
|
| 10 | Very effective | 31 |
10.1%
|
| 11 | 57 |
18.6%
|
|
| Sysmiss | 3 |