| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
6.7%
|
| 2 | 2 |
2.2%
|
|
| 4 | 6 |
6.7%
|
|
| 5 | 14 |
15.7%
|
|
| 6 | 20 |
22.5%
|
|
| 7 | 10 |
11.2%
|
|
| 8 | 14 |
15.7%
|
|
| 9 | 4 |
4.5%
|
|
| 10 | Very effective | 13 |
14.6%
|
| 11 | N/A | 127 | |
| Sysmiss | 110 |