| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1519 |
94.8%
|
| 1 | Once | 47 |
2.9%
|
| 2 | Few | 23 |
1.4%
|
| 3 | Many | 14 |
0.9%
|
| Sysmiss | 5418 |