| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 50528 |
83.1%
|
| 2 | SOMETIMES | 5227 |
8.6%
|
| 3 | OFTEN | 5050 |
8.3%
|
| 9 | OMITTED | 0 |
0%
|
| Sysmiss | 591 |