| value | category | cases | |
|---|---|---|---|
| 0 | never | 450 |
5.7%
|
| 1 | often | 2593 |
32.7%
|
| 2 | sometimes | 3643 |
45.9%
|
| 3 | seldom | 1254 |
15.8%
|
| 11 | .Z | 30044 |