| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
4.3%
|
| 2 | 11 |
3.9%
|
|
| 3 | 10 |
3.6%
|
|
| 4 | 23 |
8.2%
|
|
| 5 | 44 |
15.8%
|
|
| 6 | 31 |
11.1%
|
|
| 7 | 40 |
14.3%
|
|
| 8 | 43 |
15.4%
|
|
| 9 | 20 |
7.2%
|
|
| 10 | Very effective | 45 |
16.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 226 |