| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
2.2%
|
| 3 | 2 |
4.3%
|
|
| 4 | 1 |
2.2%
|
|
| 5 | 12 |
26.1%
|
|
| 6 | 2 |
4.3%
|
|
| 7 | 10 |
21.7%
|
|
| 8 | 6 |
13%
|
|
| 9 | 7 |
15.2%
|
|
| 10 | Very effective | 5 |
10.9%
|
| -99 | 4 | ||
| 11 | Don't know | 41 | |
| Sysmiss | 18 |