| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
4%
|
| 2 | 8 |
4.6%
|
|
| 3 | 11 |
6.4%
|
|
| 4 | 5 |
2.9%
|
|
| 5 | 20 |
11.6%
|
|
| 6 | 28 |
16.2%
|
|
| 7 | 16 |
9.2%
|
|
| 8 | 39 |
22.5%
|
|
| 9 | 18 |
10.4%
|
|
| 10 | Very effective | 21 |
12.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 106 |