| Value | Category | Cases | |
|---|---|---|---|
| -1 | missing | 0 |
0%
|
| 0 | never | 993 |
73.6%
|
| 1 | sometimes | 197 |
14.6%
|
| 2 | often | 62 |
4.6%
|
| 3 | always | 18 |
1.3%
|
| 9 | don't know | 80 |
5.9%
|