| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1585 |
96.5%
|
| 2 | Daily | 6 |
0.4%
|
| 3 | Weekly | 4 |
0.2%
|
| 4 | Monthly | 27 |
1.6%
|
| 5 | Less often than monthly | 21 |
1.3%
|
| Sysmiss | 10837 |