| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.6%
|
|
| 1 | yes | 4 |
2.5%
|
| 2 | no | 158 |
96.9%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 49 |