| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 338 |
75.3%
|
| 2 | Monthly | 69 |
15.4%
|
| 3 | Less than once a month | 35 |
7.8%
|
| 4 | Don't know | 6 |
1.3%
|
| 5 | Refused | 1 |
0.2%
|
| Sysmiss | 551 |