| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
0.5%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 19 |
5.2%
|
|
| 5 | 59 |
16%
|
|
| 6 | 99 |
26.9%
|
|
| 7 | 58 |
15.8%
|
|
| 8 | 59 |
16%
|
|
| 9 | 49 |
13.3%
|
|
| 10 | Very effective | 21 |
5.7%
|
| 11 | Don't know | 39 | |
| Sysmiss | 16 |