| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1464 |
97.8%
|
| 1 | Once | 27 |
1.8%
|
| 2 | Few | 6 |
0.4%
|
| 3 | Many | 0 |
0%
|
| Sysmiss | 4491 |