| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 3 |
4.3%
|
| 1 | Once | 13 |
18.8%
|
| 2 | Few | 28 |
40.6%
|
| 3 | Many | 25 |
36.2%
|
| Sysmiss | 7791 |