| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.1%
|
| 2 | 5 |
2.6%
|
|
| 3 | 16 |
8.2%
|
|
| 4 | 11 |
5.7%
|
|
| 5 | 21 |
10.8%
|
|
| 6 | 18 |
9.3%
|
|
| 7 | 27 |
13.9%
|
|
| 8 | 45 |
23.2%
|
|
| 9 | 21 |
10.8%
|
|
| 10 | Very effective | 22 |
11.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 199 |