| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 20 |
4.2%
|
| 2 | 15 |
3.2%
|
|
| 3 | 18 |
3.8%
|
|
| 4 | 52 |
11%
|
|
| 5 | 100 |
21.1%
|
|
| 6 | 97 |
20.5%
|
|
| 7 | 71 |
15%
|
|
| 8 | 45 |
9.5%
|
|
| 9 | 31 |
6.6%
|
|
| 10 | Very effective | 24 |
5.1%
|
| 11 | Don't know | 183 | |
| Sysmiss | 63 |