| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
10.4%
|
| 2 | 5 |
4.3%
|
|
| 3 | 11 |
9.6%
|
|
| 4 | 10 |
8.7%
|
|
| 5 | 16 |
13.9%
|
|
| 6 | 15 |
13%
|
|
| 7 | 20 |
17.4%
|
|
| 8 | 14 |
12.2%
|
|
| 9 | 11 |
9.6%
|
|
| 10 | Very effective | 1 |
0.9%
|
| 11 | Don't know | 119 | |
| Sysmiss | 55 |