| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 19 |
0.6%
|
| 2 | Weekly | 869 |
29.4%
|
| 3 | Monthly | 1472 |
49.8%
|
| 4 | Once every 3 months | 451 |
15.3%
|
| 5 | Less often | 140 |
4.7%
|
| 6 | Do not know | 6 |
0.2%
|
| Sysmiss | 9523 |