| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.8%
|
|
| 3 | 4 |
3.1%
|
|
| 4 | 3 |
2.3%
|
|
| 5 | 15 |
11.7%
|
|
| 6 | 18 |
14.1%
|
|
| 7 | 29 |
22.7%
|
|
| 8 | 32 |
25%
|
|
| 9 | 19 |
14.8%
|
|
| 10 | Very effective | 7 |
5.5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 34 |