| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
10.3%
|
| 2 | 8 |
11.8%
|
|
| 3 | 2 |
2.9%
|
|
| 4 | 1 |
1.5%
|
|
| 5 | 7 |
10.3%
|
|
| 6 | 8 |
11.8%
|
|
| 7 | 7 |
10.3%
|
|
| 8 | 7 |
10.3%
|
|
| 9 | 7 |
10.3%
|
|
| 10 | Very effective | 14 |
20.6%
|
| 11 | N/A | 10 | |
| 12 | Don't know | 76 | |
| Sysmiss | 26 |