| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 28 |
4.4%
|
| 2 | 24 |
3.8%
|
|
| 3 | 27 |
4.2%
|
|
| 4 | 53 |
8.3%
|
|
| 5 | 47 |
7.4%
|
|
| 6 | 37 |
5.8%
|
|
| 7 | 59 |
9.3%
|
|
| 8 | 53 |
8.3%
|
|
| 9 | 36 |
5.7%
|
|
| 10 | Very effective | 71 |
11.1%
|
| 11 | Don't know | 202 |
31.7%
|
| Sysmiss | 26 |