Value | Category | Cases | |
---|---|---|---|
1 | 1.Mandatory | 30 |
18.4%
|
2 | 2.Voluntary | 16 |
9.8%
|
6 | 6.Free | 117 |
71.8%
|
9 | 9.Missing | 0 |
0%
|
Sysmiss | 268 |