| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 2 |
2.2%
|
|
| 4 | 1 |
1.1%
|
|
| 5 | 6 |
6.5%
|
|
| 6 | 14 |
15.1%
|
|
| 7 | 17 |
18.3%
|
|
| 8 | 29 |
31.2%
|
|
| 9 | 13 |
14%
|
|
| 10 | Very effective | 11 |
11.8%
|
| -99 | 7 | ||
| 11 | Don't know | 50 | |
| Sysmiss | 7 |