| Value | Category | Cases | |
|---|---|---|---|
| 1 | DAILY | 18 |
0.2%
|
| 2 | LESS THAN DAILY | 33 |
0.4%
|
| 3 | NOT AT ALL | 8606 |
99.2%
|
| 7 | DON'T KNOW | 16 |
0.2%
|
| 9 | REFUSED | 0 |
0%
|
| Sysmiss | 323 |