| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
1.1%
|
|
| 3 | 6 |
2.3%
|
|
| 4 | 13 |
5%
|
|
| 5 | 29 |
11.1%
|
|
| 6 | 35 |
13.4%
|
|
| 7 | 55 |
21.1%
|
|
| 8 | 62 |
23.8%
|
|
| 9 | 38 |
14.6%
|
|
| 10 | Very effective | 20 |
7.7%
|
| -99 | 27 | ||
| 11 | Don't know | 252 | |
| Sysmiss | 40 |