| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. yes | 699 |
32%
|
| 2 | 2. no | 1256 |
57.5%
|
| 3 | 3. only grade r is separate | 230 |
10.5%
|
| 99 | 99. other | 0 |
0%
|
| Sysmiss | 2353 |