| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| -777 | Not applicable (never) | 0 |
0%
|
| -666 | Other (please specify) | 0 |
0%
|
| 1 | Once per week | 50 |
2.7%
|
| 2 | Several times per week | 77 |
4.2%
|
| 3 | Once per month | 181 |
9.9%
|
| 4 | Several times per month | 256 |
14%
|
| 5 | Once per year | 29 |
1.6%
|
| 6 | Irregularly | 1236 |
67.6%
|
| 11 | .D | 2 |