| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 5636 |
90%
|
| 2 | I have not stopped smoking | 240 |
3.8%
|
| 3 | 1-3 months | 139 |
2.2%
|
| 4 | 4-11 months | 81 |
1.3%
|
| 5 | One year | 62 |
1%
|
| 6 | 2 years | 44 |
0.7%
|
| 7 | 3 years or longer | 61 |
1%
|
| Sysmiss | 133 |