| Value | Category | Cases | |
|---|---|---|---|
| 1 | DAILY | 5 |
0.1%
|
| 2 | LESS THAN DAILY | 9 |
0.2%
|
| 3 | NOT AT ALL | 4079 |
99.4%
|
| 7 | DON'T KNOW | 10 |
0.2%
|
| 9 | REFUSED | 0 |
0%
|
| Sysmiss | 147 |