| Value | Category | Cases | |
|---|---|---|---|
| 0 | < 1 year completed | 4 |
16%
|
| 1 | 2 |
8%
|
|
| 2 | 2 |
8%
|
|
| 4 | 8 |
32%
|
|
| 6 | 4 |
16%
|
|
| 8 | 5 |
20%
|
|
| 98 | dk | 0 |
0%
|
| Sysmiss | 15326 |