| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2%
|
| 2 | 4 |
2%
|
|
| 3 | 14 |
6.9%
|
|
| 4 | 13 |
6.4%
|
|
| 5 | 21 |
10.3%
|
|
| 6 | 26 |
12.8%
|
|
| 7 | 49 |
24.1%
|
|
| 8 | 42 |
20.7%
|
|
| 9 | 18 |
8.9%
|
|
| 10 | Very effective | 12 |
5.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 237 |