| Value | Category | Cases | |
|---|---|---|---|
| 0 | 0. Never | 1881 |
65.2%
|
| 1 | 1. Once | 397 |
13.8%
|
| 2 | 2. 2-4 times | 417 |
14.4%
|
| 3 | 3. 5-9 times | 53 |
1.8%
|
| 4 | 4. About once a month on average | 105 |
3.6%
|
| 5 | 5. About twice a month on average | 16 |
0.6%
|
| 6 | 6. About once a week on average | 14 |
0.5%
|
| 7 | 7. More than once a week | 4 |
0.1%
|
| Sysmiss | 60 |