| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 274 |
1.7%
|
| 2 | Weekly | 442 |
2.8%
|
| 3 | Monthly | 367 |
2.3%
|
| 4 | Yearly | 106 |
0.7%
|
| 5 | Not at all | 14746 |
92.5%
|
| Sysmiss | 8877 |