| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
2.7%
|
| 2 | 5 |
1.5%
|
|
| 3 | 11 |
3.3%
|
|
| 4 | 20 |
6%
|
|
| 5 | 36 |
10.7%
|
|
| 6 | 50 |
14.9%
|
|
| 7 | 43 |
12.8%
|
|
| 8 | 29 |
8.6%
|
|
| 9 | 31 |
9.2%
|
|
| 10 | Very effective | 33 |
9.8%
|
| 11 | N/A | 9 |
2.7%
|
| 12 | Don't know | 60 |
17.9%
|
| Sysmiss | 18 |