| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 23 |
0.4%
|
| 2 | More than once a week | 32 |
0.5%
|
| 3 | About once a week | 68 |
1.2%
|
| 4 | About once a month | 68 |
1.2%
|
| 5 | A few times a year | 133 |
2.3%
|
| 6 | Never | 5500 |
94.4%
|
| Sysmiss | 4036 |