| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 13 |
0.2%
|
| 2 | More than once a week | 31 |
0.5%
|
| 3 | About once a week | 64 |
1.1%
|
| 4 | About once a month | 59 |
1%
|
| 5 | A few times a year | 98 |
1.7%
|
| 6 | Never | 5559 |
95.4%
|
| Sysmiss | 4036 |