| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, often | 0 |
0%
|
| 2 | yes, sometimes | 8 |
0.6%
|
| 3 | yes seldom | 29 |
2.1%
|
| 4 | no | 1327 |
97.3%
|
| Sysmiss | 1456 |