| Value | Category | Cases | |
|---|---|---|---|
| 1 | MANDATORY | 85 |
28.9%
|
| 2 | VOLUNTARY | 3 |
1%
|
| 3 | BOTH | 0 |
0%
|
| 4 | DON'T KNOW | 43 |
14.6%
|
| 5 | NONE | 163 |
55.4%
|