| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 19 |
8.8%
|
| 2 | 10 |
4.6%
|
|
| 3 | 4 |
1.8%
|
|
| 4 | 10 |
4.6%
|
|
| 5 | 22 |
10.1%
|
|
| 6 | 20 |
9.2%
|
|
| 7 | 24 |
11.1%
|
|
| 8 | 31 |
14.3%
|
|
| 9 | 18 |
8.3%
|
|
| 10 | Very effective | 59 |
27.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 125 |