| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1446 |
95.7%
|
| 1 | Once | 49 |
3.2%
|
| 2 | Few | 11 |
0.7%
|
| 3 | Many | 5 |
0.3%
|
| Sysmiss | 4477 |