| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2972 |
73.1%
|
| 2 | Only one or two puffs | 478 |
11.8%
|
| 3 | 1 cigarette | 107 |
2.6%
|
| 4 | 2 to 5 cigarettes | 133 |
3.3%
|
| 5 | 6 to 15 cigarettes | 75 |
1.8%
|
| 6 | 16 to 25 cigarettes | 54 |
1.3%
|
| 7 | 26 to 99 cigarettes | 56 |
1.4%
|
| 8 | 100 cigarettes or more | 193 |
4.7%
|
| Sysmiss | 76 |