| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2.2%
|
| 2 | 2 |
2.2%
|
|
| 3 | 5 |
5.6%
|
|
| 4 | 4 |
4.4%
|
|
| 5 | 9 |
10%
|
|
| 6 | 10 |
11.1%
|
|
| 7 | 10 |
11.1%
|
|
| 8 | 20 |
22.2%
|
|
| 9 | 18 |
20%
|
|
| 10 | Very effective | 10 |
11.1%
|
| -99 | 16 | ||
| 11 | Don't know | 76 | |
| Sysmiss | 22 |