| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes | 0 |
0%
|
| 2 | no | 7 |
0.2%
|
| 9 | not applicable | 4045 |
96.1%
|
| 9999995 | missing:impute | 156 |
3.7%
|
| Sysmiss | 25 |