| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1665 |
6.7%
|
| 2 | Monthly | 1984 |
8%
|
| 3 | Yearly | 1335 |
5.4%
|
| 4 | Less often | 3533 |
14.3%
|
| 5 | Not at all | 16250 |
65.6%
|
| Sysmiss | 817 |