| Value | Category | Cases | |
|---|---|---|---|
| 1 | DAILY | 9 |
0.1%
|
| 2 | LESS THAN DAILY | 35 |
0.5%
|
| 3 | NOT AT ALL | 7009 |
90.9%
|
| 7 | DONT KNOW | 30 |
0.4%
|
| Sysmiss | 626 |