| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 3 |
0.1%
|
| 2 | Weekly | 21 |
0.8%
|
| 3 | Monthly | 72 |
2.9%
|
| 4 | More than monthly | 175 |
7%
|
| 5 | Never | 2100 |
83.9%
|
| 98 | Don’t know | 131 |
5.2%
|
| Sysmiss | 271 |