| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 123 |
3.7%
|
| 2 | Weekly | 739 |
22.3%
|
| 3 | Monthly | 1872 |
56.6%
|
| 4 | Once a term | 486 |
14.7%
|
| 5 | Never | 90 |
2.7%
|
| Sysmiss | 17 |