| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 51 |
5.9%
|
| 1 | Once | 91 |
10.5%
|
| 2 | Few | 339 |
39.3%
|
| 3 | Many | 382 |
44.3%
|
| Sysmiss | 6997 |