| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 455 |
2.1%
|
| 2 | Weekly | 1082 |
5%
|
| 3 | Monthly | 1786 |
8.2%
|
| 4 | Yearly | 531 |
2.4%
|
| 5 | Not at all | 17823 |
82.2%
|
| Sysmiss | 3431 |