| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 19 |
0.2%
|
| 2 | More than once a week | 54 |
0.5%
|
| 3 | About once a week | 110 |
1.1%
|
| 4 | About once a month | 363 |
3.7%
|
| 5 | A few times a year | 326 |
3.3%
|
| 6 | Never | 8986 |
91.2%
|
| Sysmiss | 2 |