| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1930 |
7.8%
|
| 2 | Monthly | 1049 |
4.3%
|
| 3 | Yearly | 1178 |
4.8%
|
| 4 | Less often | 2188 |
8.9%
|
| 5 | Not at all | 18247 |
74.2%
|
| Sysmiss | 516 |