| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 1156 |
4.7%
|
| 2 | Monthly | 793 |
3.2%
|
| 3 | Yearly | 696 |
2.8%
|
| 4 | Less often | 1984 |
8%
|
| 5 | Not at all | 20138 |
81.3%
|
| Sysmiss | 817 |