| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.7%
|
| 2 | 1 |
0.7%
|
|
| 3 | 3 |
2.1%
|
|
| 4 | 0 |
0%
|
|
| 5 | 5 |
3.5%
|
|
| 6 | 5 |
3.5%
|
|
| 7 | 14 |
9.9%
|
|
| 8 | 32 |
22.7%
|
|
| 9 | 18 |
12.8%
|
|
| 10 | Very effective | 13 |
9.2%
|
| 11 | Don’t know | 49 |
34.8%
|
| Sysmiss | 24 |