| Value | Category | Cases | |
|---|---|---|---|
| 1 | Once a week | 7 |
1.6%
|
| 2 | Once a month | 418 |
97.2%
|
| 3 | Once every 3 months | 1 |
0.2%
|
| 4 | Once every 6 months | 0 |
0%
|
| 5 | Don't know | 3 |
0.7%
|
| 6 | Refused | 1 |
0.2%
|
| 7 | Data not entered | 0 |
0%
|
| Sysmiss | 639 |