| Value | Category | Cases | |
|---|---|---|---|
| 1 | DAILY | 1 |
0%
|
| 2 | LESS THAN DAILY | 21 |
0.2%
|
| 3 | NOT AT ALL | 8825 |
99.7%
|
| 9 | REFUSED | 4 |
0%
|
| Sysmiss | 2793 |