| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 8353 |
98.5%
|
| 2 | Daily | 5 |
0.1%
|
| 3 | Weekly | 14 |
0.2%
|
| 4 | Monthly | 63 |
0.7%
|
| 5 | Less often than monthly | 44 |
0.5%
|
| Sysmiss | 92 |