| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 1175 |
94.4%
|
| 1 | Yes, once | 41 |
3.3%
|
| 2 | Yes, more than once | 29 |
2.3%
|
| 9 | 6 | ||
| Sysmiss | 180 |