| Value | Category | Cases | |
|---|---|---|---|
| -99 | 9 |
1.8%
|
|
| 1 | Not effective at all | 4 |
0.8%
|
| 2 | 13 |
2.7%
|
|
| 3 | 17 |
3.5%
|
|
| 4 | 32 |
6.5%
|
|
| 5 | 69 |
14.1%
|
|
| 6 | 81 |
16.6%
|
|
| 7 | 73 |
14.9%
|
|
| 8 | 46 |
9.4%
|
|
| 9 | 12 |
2.5%
|
|
| 10 | Very effective | 15 |
3.1%
|
| 11 | 118 |
24.1%
|
|
| Sysmiss | 8 |