| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.3%
|
| 2 | 14 |
5.3%
|
|
| 3 | 12 |
4.5%
|
|
| 4 | 24 |
9.1%
|
|
| 5 | 50 |
18.9%
|
|
| 6 | 44 |
16.6%
|
|
| 7 | 44 |
16.6%
|
|
| 8 | 39 |
14.7%
|
|
| 9 | 23 |
8.7%
|
|
| 10 | Very effective | 9 |
3.4%
|
| -99 | 1 | ||
| 11 | Don't know | 101 | |
| Sysmiss | 54 |