| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 9195 |
96.2%
|
| 2 | Daily | 44 |
0.5%
|
| 3 | Weekly | 37 |
0.4%
|
| 4 | Monthly | 210 |
2.2%
|
| 5 | Less than monthly | 69 |
0.7%
|
| Sysmiss | 39468 |