| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 98 |
0.4%
|
| 2 | Monthly | 186 |
0.8%
|
| 3 | Yearly | 896 |
3.6%
|
| 4 | Less often | 1318 |
5.3%
|
| 5 | Not at all | 22269 |
89.9%
|
| Sysmiss | 817 |