| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 19300 |
31.7%
|
| 2 | SOMETIMES | 29495 |
48.5%
|
| 3 | OFTEN | 12010 |
19.8%
|
| 9 | OMITTED | 0 |
0%
|
| Sysmiss | 591 |