| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 24 |
0.4%
|
| 2 | More than once a week | 36 |
0.6%
|
| 3 | About once a week | 64 |
1.1%
|
| 4 | About once a month | 61 |
1%
|
| 5 | A few times a year | 151 |
2.6%
|
| 6 | Never | 5488 |
94.2%
|
| Sysmiss | 4036 |