| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 621 |
41.5%
|
| 2 | Weekly | 9 |
0.6%
|
| 3 | Monthly | 3 |
0.2%
|
| 4 | Once or twice | 7 |
0.5%
|
| 5 | Never | 2 |
0.1%
|
| Sysmiss | 856 |
57.1%
|