| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 20 |
4%
|
| 2 | 16 |
3.2%
|
|
| 3 | 32 |
6.4%
|
|
| 4 | 48 |
9.6%
|
|
| 5 | 92 |
18.4%
|
|
| 6 | 97 |
19.4%
|
|
| 7 | 63 |
12.6%
|
|
| 8 | 53 |
10.6%
|
|
| 9 | 53 |
10.6%
|
|
| 10 | Very effective | 26 |
5.2%
|
| 11 | Don't know | 157 | |
| Sysmiss | 62 |