| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 4 |
80%
|
| 1 | Once/Twice | 1 |
20%
|
| 2 | Monthly | 0 |
0%
|
| 3 | Weekly | 0 |
0%
|
| 4 | Daily/almost daily | 0 |
0%
|
| Sysmiss | 154 |