| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 17 |
0.3%
|
| 2 | More than once a week | 32 |
0.5%
|
| 3 | About once a week | 62 |
1.1%
|
| 4 | About once a month | 95 |
1.6%
|
| 5 | A few times a year | 148 |
2.5%
|
| 6 | Never | 5470 |
93.9%
|
| Sysmiss | 4036 |