| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 110 |
6.3%
|
| 1 | Once | 165 |
9.4%
|
| 2 | Few | 886 |
50.6%
|
| 3 | Many | 591 |
33.7%
|
| Sysmiss | 6108 |