| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 18 |
4.9%
|
| 2 | 23 |
6.2%
|
|
| 3 | 49 |
13.2%
|
|
| 4 | 73 |
19.7%
|
|
| 5 | 95 |
25.6%
|
|
| 6 | 63 |
17%
|
|
| 7 | 25 |
6.7%
|
|
| 8 | 17 |
4.6%
|
|
| 9 | 2 |
0.5%
|
|
| 10 | Very effective | 6 |
1.6%
|
| 11 | Don't know | 103 | |
| Sysmiss | 4 |