| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 1 |
1.1%
|
| 2 | Once or more a week but not daily | 2 |
2.2%
|
| 3 | Once or more a month but not weekly | 31 |
33.7%
|
| 4 | Less than once a month | 58 |
63%
|
| Sysmiss | 8479 |