| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1%
|
|
| 1 | Not effective at all | 1 |
0.5%
|
| 2 | 4 |
2%
|
|
| 3 | 7 |
3.5%
|
|
| 4 | 18 |
9%
|
|
| 5 | 32 |
16.1%
|
|
| 6 | 20 |
10.1%
|
|
| 7 | 38 |
19.1%
|
|
| 8 | 18 |
9%
|
|
| 9 | 11 |
5.5%
|
|
| 10 | Very effective | 7 |
3.5%
|
| 11 | Don't know | 40 |
20.1%
|
| 111 | 1 |
0.5%
|
|
| Sysmiss | 26 |