| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1277 |
81.8%
|
| 2 | 1 to 2 puffs | 83 |
5.3%
|
| 3 | 1 cigarette | 85 |
5.4%
|
| 4 | 2 to 5 cigarettes | 29 |
1.9%
|
| 5 | 6 to 10 cigarettes | 19 |
1.2%
|
| 6 | 16 to 20 cigarettes | 23 |
1.5%
|
| 7 | 26 to 99 cigarettes | 13 |
0.8%
|
| 8 | 100 + cigarettes | 32 |
2%
|
| Sysmiss | 6 |