| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 9 |
3.1%
|
|
| 4 | 5 |
1.7%
|
|
| 5 | 21 |
7.2%
|
|
| 6 | 31 |
10.6%
|
|
| 7 | 71 |
24.3%
|
|
| 8 | 80 |
27.4%
|
|
| 9 | 41 |
14%
|
|
| 10 | Very effective | 34 |
11.6%
|
| -99 | 27 | ||
| 11 | Don't know | 222 | |
| Sysmiss | 39 |