| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, more than monthly | 53 |
1.3%
|
| 2 | Yes, monthly | 95 |
2.3%
|
| 3 | Yes, several times but less than monthly | 96 |
2.4%
|
| 4 | Yes, once or twice | 258 |
6.3%
|
| 5 | No | 3563 |
87.7%
|
| Sysmiss | 5 |