| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, often | 0 |
0%
|
| 2 | yes, sometimes | 7 |
0.5%
|
| 3 | yes seldom | 25 |
1.8%
|
| 4 | no | 1341 |
97.7%
|
| Sysmiss | 1447 |