| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 1 |
0.3%
|
|
| 4 | 12 |
3.4%
|
|
| 5 | 44 |
12.5%
|
|
| 6 | 79 |
22.5%
|
|
| 7 | 78 |
22.2%
|
|
| 8 | 53 |
15.1%
|
|
| 9 | 58 |
16.5%
|
|
| 10 | Very effective | 26 |
7.4%
|
| 11 | Don't know | 52 | |
| Sysmiss | 20 |