| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
2.6%
|
| 2 | 2 |
0.6%
|
|
| 3 | 6 |
1.8%
|
|
| 4 | 17 |
5%
|
|
| 5 | 38 |
11.2%
|
|
| 6 | 46 |
13.5%
|
|
| 7 | 42 |
12.4%
|
|
| 8 | 45 |
13.2%
|
|
| 9 | 18 |
5.3%
|
|
| 10 | Very effective | 29 |
8.5%
|
| 11 | N/A | 9 |
2.6%
|
| 12 | Don't know | 79 |
23.2%
|
| Sysmiss | 14 |