| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 155 |
78.7%
|
| 1 | Once | 2 |
1%
|
| 2 | A few times | 32 |
16.2%
|
| 3 | Often | 7 |
3.6%
|
| 88 | I don't know | 0 |
0%
|
| 999 | I don't wish to answer | 1 |
0.5%
|
| Sysmiss | 52 |