| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 1148 |
66.5%
|
| 2 | 1 or 2 puffs only | 295 |
17.1%
|
| 3 | 1 cigarette | 102 |
5.9%
|
| 4 | 2 to 5 cigarettes per day | 114 |
6.6%
|
| 5 | 6 to 15 cigarettes (about half a pack) | 21 |
1.2%
|
| 6 | 16 to 25 cigarettes (about 1 pack) | 18 |
1%
|
| 7 | 26 to 99 cigarettes | 10 |
0.6%
|
| 8 | 100+ cigarettes (5 or more packs) | 19 |
1.1%
|
| Sysmiss | 10 |