| Value | Category | Cases | |
|---|---|---|---|
| -1 | missing | 0 |
0%
|
| 0 | never | 968 |
71.7%
|
| 1 | sometimes | 229 |
17%
|
| 2 | often | 53 |
3.9%
|
| 3 | always | 26 |
1.9%
|
| 9 | Don't know | 74 |
5.5%
|