| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 322 |
11.3%
|
| 2 | no | 2520 |
88.5%
|
| 9 | 6 |
0.2%
|
|
| Sysmiss | 152 |