| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 4 |
1.3%
|
| 2 | no | 299 |
98.7%
|
| 777 | n\a | 0 |
0%
|
| 888 | dk | 0 |
0%
|
| 999 | missing | 0 |
0%
|
| Sysmiss | 1639 |