| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 8998 |
94.2%
|
| 2 | Daily | 47 |
0.5%
|
| 3 | Weekly | 70 |
0.7%
|
| 4 | Monthly | 318 |
3.3%
|
| 5 | Less than monthly | 122 |
1.3%
|
| Sysmiss | 39468 |