| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1482 |
97.5%
|
| 1 | Once | 22 |
1.4%
|
| 2 | Few | 12 |
0.8%
|
| 3 | Many | 4 |
0.3%
|
| Sysmiss | 5510 |