| Value | Category | Cases | |
|---|---|---|---|
| 1 | A lot | 973 |
23%
|
| 2 | A few | 1393 |
33%
|
| 3 | None | 1338 |
31.7%
|
| 4 | ??? | 519 |
12.3%
|
| Sysmiss | 47 |