| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
0.3%
|
|
| 1 | Not effective at all | 14 |
2.3%
|
| 2 | 10 |
1.6%
|
|
| 3 | 17 |
2.8%
|
|
| 4 | 27 |
4.4%
|
|
| 5 | 90 |
14.6%
|
|
| 6 | 93 |
15.1%
|
|
| 7 | 100 |
16.2%
|
|
| 8 | 88 |
14.3%
|
|
| 9 | 41 |
6.6%
|
|
| 10 | Very effective | 42 |
6.8%
|
| 11 | Don't know | 93 |
15.1%
|
| Sysmiss | 7 |