| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. yes | 875 |
19.5%
|
| 2 | 2. no | 802 |
17.8%
|
| 77 | 77. d/r | 0 |
0%
|
| 99 | 99. missing | 2821 |
62.7%
|
| Sysmiss | 40 |