| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 162 |
29.2%
|
| 2 | Monthly | 112 |
20.2%
|
| 3 | Less than once a month | 253 |
45.6%
|
| 4 | Never | 15 |
2.7%
|
| 5 | Don't know | 12 |
2.2%
|
| 6 | Refused | 1 |
0.2%
|
| Sysmiss | 445 |