| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.7%
|
| 2 | 8 |
6.7%
|
|
| 3 | 11 |
9.2%
|
|
| 4 | 12 |
10.1%
|
|
| 5 | 17 |
14.3%
|
|
| 6 | 17 |
14.3%
|
|
| 7 | 25 |
21%
|
|
| 8 | 18 |
15.1%
|
|
| 9 | 5 |
4.2%
|
|
| 10 | Very effective | 4 |
3.4%
|
| -99 | 3 | ||
| 11 | Don't know | 26 | |
| Sysmiss | 12 |