| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1171 |
4.7%
|
| 2 | Monthly | 3312 |
13.4%
|
| 3 | Yearly | 4745 |
19.2%
|
| 4 | Less often | 10339 |
41.7%
|
| 5 | Not at all | 5200 |
21%
|
| Sysmiss | 817 |