| Value | Category | Cases | |
|---|---|---|---|
| 1 | Monthly | 1644 |
8.8%
|
| 2 | Quarterly | 1904 |
10.2%
|
| 3 | Half-yearly | 1395 |
7.5%
|
| 4 | Annually | 2785 |
14.9%
|
| 5 | Never | 10708 |
57.4%
|
| 6 | Don't Know | 227 |
1.2%
|
| Sysmiss | 4819 |