| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1708 |
95.8%
|
| 1 | Once | 53 |
3%
|
| 2 | Few | 10 |
0.6%
|
| 3 | Many | 12 |
0.7%
|
| Sysmiss | 4205 |