| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 1 |
1%
|
|
| 4 | 1 |
1%
|
|
| 5 | 4 |
4.2%
|
|
| 6 | 8 |
8.3%
|
|
| 7 | 18 |
18.8%
|
|
| 8 | 28 |
29.2%
|
|
| 9 | 22 |
22.9%
|
|
| 10 | Very effective | 14 |
14.6%
|
| -99 | 7 | ||
| 11 | Don't know | 46 | |
| Sysmiss | 8 |