| Value | Category | Cases | |
|---|---|---|---|
| -99 | 82 |
27.8%
|
|
| 1 | Not effective at all | 31 |
10.5%
|
| 2 | 11 |
3.7%
|
|
| 3 | 16 |
5.4%
|
|
| 4 | 13 |
4.4%
|
|
| 5 | 15 |
5.1%
|
|
| 6 | 14 |
4.7%
|
|
| 7 | 10 |
3.4%
|
|
| 8 | 8 |
2.7%
|
|
| 9 | 5 |
1.7%
|
|
| 10 | Very effective | 24 |
8.1%
|
| 11 | Don't know | 14 |
4.7%
|
| 12 | 51 |
17.3%
|
|
| 111 | 1 |
0.3%
|
|
| Sysmiss | 80 |