| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 4 |
0.1%
|
| -7 | DON'T KNOW | 266 |
8.6%
|
| 1 | LIGHT | 1552 |
50%
|
| 2 | MILD | 801 |
25.8%
|
| 3 | LOW TAR | 119 |
3.8%
|
| 4 | NONE OF THE ABOVE | 359 |
11.6%
|
| Sysmiss | 15365 |