| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 4 |
4.4%
|
| 1 | Once | 14 |
15.4%
|
| 2 | Few | 39 |
42.9%
|
| 3 | Many | 34 |
37.4%
|
| Sysmiss | 7769 |