| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2377 |
77.6%
|
| 2 | Only one or two puffs | 417 |
13.6%
|
| 3 | 1 cigarette | 89 |
2.9%
|
| 4 | 2 to 5 cigarettes | 73 |
2.4%
|
| 5 | 6 to 15 cigarettes | 42 |
1.4%
|
| 6 | 16 to 25 cigarettes | 26 |
0.8%
|
| 7 | 26 to 99 cigarettes | 21 |
0.7%
|
| 8 | 100 cigarettes or more | 20 |
0.7%
|
| Sysmiss | 18 |