| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1039 |
92.1%
|
| 1 | Once | 57 |
5.1%
|
| 2 | Few | 21 |
1.9%
|
| 3 | Many | 11 |
1%
|
| Sysmiss | 2471 |