| Value | Category | Cases | |
|---|---|---|---|
| -99 | 7 |
3%
|
|
| 1 | Not effective at all | 6 |
2.5%
|
| 2 | 7 |
3%
|
|
| 3 | 8 |
3.4%
|
|
| 4 | 11 |
4.6%
|
|
| 5 | 26 |
11%
|
|
| 6 | 22 |
9.3%
|
|
| 7 | 27 |
11.4%
|
|
| 8 | 19 |
8%
|
|
| 9 | 13 |
5.5%
|
|
| 10 | Very effective | 8 |
3.4%
|
| 11 | Don't know | 83 |
35%
|
| Sysmiss | 7 |