| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
1.2%
|
| 2 | 4 |
1.2%
|
|
| 3 | 7 |
2.1%
|
|
| 4 | 14 |
4.2%
|
|
| 5 | 42 |
12.5%
|
|
| 6 | 39 |
11.6%
|
|
| 7 | 42 |
12.5%
|
|
| 8 | 21 |
6.3%
|
|
| 9 | 30 |
9%
|
|
| 10 | Very effective | 32 |
9.6%
|
| 11 | N/A | 10 |
3%
|
| 12 | Don't know | 90 |
26.9%
|
| Sysmiss | 19 |