| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than daily | 1 |
11.1%
|
| 2 | 1-5 smokes/day | 7 |
77.8%
|
| 3 | 6-10 smokes/day | 0 |
0%
|
| 4 | 10-20 smokes/day | 0 |
0%
|
| 5 | 20-40 smokes/day | 1 |
11.1%
|
| 6 | More than 40 smokes/day | 0 |
0%
|
| Sysmiss | 41 |