| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 27 |
8.3%
|
| 2 | 28 |
8.6%
|
|
| 3 | 57 |
17.6%
|
|
| 4 | 62 |
19.1%
|
|
| 5 | 64 |
19.8%
|
|
| 6 | 43 |
13.3%
|
|
| 7 | 23 |
7.1%
|
|
| 8 | 8 |
2.5%
|
|
| 9 | 3 |
0.9%
|
|
| 10 | Very effective | 9 |
2.8%
|
| 11 | Don't know | 152 | |
| Sysmiss | 2 |