| Value | Category | Cases | |
|---|---|---|---|
| -99 | 3 |
1%
|
|
| 1 | Not effective at all | 7 |
2.4%
|
| 2 | 1 |
0.3%
|
|
| 3 | 12 |
4.2%
|
|
| 4 | 9 |
3.1%
|
|
| 5 | 28 |
9.7%
|
|
| 6 | 24 |
8.3%
|
|
| 7 | 50 |
17.3%
|
|
| 8 | 51 |
17.6%
|
|
| 9 | 31 |
10.7%
|
|
| 10 | Very effective | 14 |
4.8%
|
| 11 | Don't know | 59 |
20.4%
|
| Sysmiss | 18 |