| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1697 |
96.8%
|
| 1 | Once | 38 |
2.2%
|
| 2 | Few | 11 |
0.6%
|
| 3 | Many | 8 |
0.5%
|
| Sysmiss | 5276 |