| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | yes | 242 |
11.7%
|
| 2 | no | 1820 |
88.1%
|
| 3 | 3 |
0.1%
|
|
| 9 | na | 0 |
0%
|
| Sysmiss | 935 |