| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 1 |
0%
|
| -7 | DON'T KNOW | 29 |
0.2%
|
| 1 | DAILY | 42 |
0.2%
|
| 2 | LESS THAN DAILY | 126 |
0.7%
|
| 3 | NOT AT ALL | 17832 |
98.9%
|
| Sysmiss | 436 |