| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1330 |
97.1%
|
| 1 | Once | 26 |
1.9%
|
| 2 | Few | 13 |
0.9%
|
| 3 | Many | 1 |
0.1%
|
| Sysmiss | 5651 |