| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 5 |
1.6%
|
|
| 4 | 3 |
1%
|
|
| 5 | 23 |
7.5%
|
|
| 6 | 28 |
9.1%
|
|
| 7 | 71 |
23.1%
|
|
| 8 | 93 |
30.2%
|
|
| 9 | 46 |
14.9%
|
|
| 10 | Very effective | 39 |
12.7%
|
| -99 | 28 | ||
| 11 | Don't know | 204 | |
| Sysmiss | 40 |