| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 1 |
0.3%
|
| 2 | no | 300 |
88.2%
|
| 777 | n\a | 37 |
10.9%
|
| 888 | dk | 0 |
0%
|
| 999 | missing | 2 |
0.6%
|
| Sysmiss | 1602 |