| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 9294 |
15.3%
|
| 2 | SOMETIMES | 38008 |
62.5%
|
| 3 | OFTEN | 13503 |
22.2%
|
| 9 | OMITTED | 0 |
0%
|
| Sysmiss | 591 |