| Value | Category | Cases | |
|---|---|---|---|
| -99 | 15 |
7.9%
|
|
| 1 | Not effective at all | 3 |
1.6%
|
| 2 | 4 |
2.1%
|
|
| 3 | 4 |
2.1%
|
|
| 4 | 6 |
3.1%
|
|
| 5 | 16 |
8.4%
|
|
| 6 | 24 |
12.6%
|
|
| 7 | 19 |
9.9%
|
|
| 8 | 21 |
11%
|
|
| 9 | 12 |
6.3%
|
|
| 10 | Very effective | 0 |
0%
|
| 11 | 67 |
35.1%
|
|
| Sysmiss | 12 |