| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, often | 0 |
0%
|
| 2 | yes, sometimes | 10 |
0.6%
|
| 3 | yes seldom | 73 |
4.5%
|
| 4 | no | 1526 |
94.8%
|
| Sysmiss | 1211 |