| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1027 |
91%
|
| 1 | Once | 61 |
5.4%
|
| 2 | Few | 29 |
2.6%
|
| 3 | Many | 12 |
1.1%
|
| Sysmiss | 2470 |