| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 5 Cigs/day | 283 |
3.7%
|
| 2 | 5-9 Cigs/day | 122 |
1.6%
|
| 3 | 10-14 Cigs/day | 222 |
2.9%
|
| 4 | 15-19 Cigs/day | 95 |
1.2%
|
| 5 | 20+ Cigs/day | 1035 |
13.4%
|
| Sysmiss | 5952 |