| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 90 |
0.4%
|
| 2 | Monthly | 102 |
0.4%
|
| 3 | Yearly | 398 |
1.6%
|
| 4 | Less often | 856 |
3.5%
|
| 5 | Not at all | 23146 |
94.1%
|
| Sysmiss | 516 |