| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, more than monthly | 68 |
1.6%
|
| 2 | Yes, monthly | 83 |
1.9%
|
| 3 | Yes, several times but less than monthly | 123 |
2.9%
|
| 4 | Yes, once or twice | 255 |
5.9%
|
| 5 | No | 3772 |
87.7%
|
| Sysmiss | 1 |