| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.8%
|
| 2 | 2 |
1.7%
|
|
| 3 | 4 |
3.4%
|
|
| 4 | 10 |
8.5%
|
|
| 5 | 19 |
16.1%
|
|
| 6 | 21 |
17.8%
|
|
| 7 | 17 |
14.4%
|
|
| 8 | 28 |
23.7%
|
|
| 9 | 5 |
4.2%
|
|
| 10 | Very effective | 11 |
9.3%
|
| 11 | N/A | 73 | |
| Sysmiss | 31 |