| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 2030 |
60.4%
|
| 1 | Once a hour or more often | 198 |
5.9%
|
| 2 | Once a day | 240 |
7.1%
|
| 3 | Once a month | 311 |
9.3%
|
| 4 | Less than once a month | 583 |
17.3%
|
| Sysmiss | 11515 |