| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 524 |
2.1%
|
| 2 | Monthly | 2048 |
8.3%
|
| 3 | Yearly | 2485 |
10.1%
|
| 4 | Less often | 3383 |
13.7%
|
| 5 | Not at all | 16210 |
65.8%
|
| Sysmiss | 510 |