| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 328 |
2.1%
|
| 2 | Weekly | 1119 |
7%
|
| 3 | Monthly | 2263 |
14.2%
|
| 4 | Yearly | 833 |
5.2%
|
| 5 | Not at all | 11392 |
71.5%
|
| Sysmiss | 8877 |