| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1501 |
93.5%
|
| 1 | Once | 66 |
4.1%
|
| 2 | Few | 20 |
1.2%
|
| 3 | Many | 19 |
1.2%
|
| Sysmiss | 5415 |