| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 2528 |
76.9%
|
| 2 | Only one or two puffs | 303 |
9.2%
|
| 3 | 1 cigarette | 191 |
5.8%
|
| 4 | 2 to 5 cigarettes | 91 |
2.8%
|
| 5 | 6 to 15 cigarettes | 41 |
1.2%
|
| 6 | 16 to 25 cigarettes | 35 |
1.1%
|
| 7 | 26 to 99 cigarettes | 19 |
0.6%
|
| 8 | 100 cigarettes or more | 79 |
2.4%
|
| Sysmiss | 90 |