| Value | Category | Cases | |
|---|---|---|---|
| 1 | NEVER | 51385 |
84.5%
|
| 2 | SOMETIMES | 4202 |
6.9%
|
| 3 | OFTEN | 5218 |
8.6%
|
| 9 | OMITTED | 0 |
0%
|
| Sysmiss | 591 |