| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0%
|
|
| 1 | Yes | 1553 |
29.4%
|
| 2 | No | 3721 |
70.5%
|
| 8 | 1 |
0%
|
|
| 9 | 1 |
0%
|
|
| Sysmiss | 349 |