| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 7 |
2.2%
|
| 2 | no | 305 |
97.8%
|
| 777 | n\a | 0 |
0%
|
| 888 | dk | 0 |
0%
|
| 999 | missing | 0 |
0%
|
| Sysmiss | 1630 |