| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
4.7%
|
| 2 | 9 |
3.5%
|
|
| 3 | 11 |
4.3%
|
|
| 4 | 17 |
6.6%
|
|
| 5 | 41 |
15.9%
|
|
| 6 | 38 |
14.7%
|
|
| 7 | 32 |
12.4%
|
|
| 8 | 24 |
9.3%
|
|
| 9 | 28 |
10.9%
|
|
| 10 | Very effective | 46 |
17.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 247 |