| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.1%
|
|
| 1 | yes | 301 |
19.4%
|
| 2 | no | 1247 |
80.5%
|
| 9 | missing | 0 |
0%
|
| Sysmiss | 66 |