| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2147 |
87.8%
|
| 2 | I have not stopped smoking | 171 |
7%
|
| 3 | 1-3 months | 43 |
1.8%
|
| 4 | 4-11 months | 30 |
1.2%
|
| 5 | One year | 19 |
0.8%
|
| 6 | 2 years | 20 |
0.8%
|
| 7 | 3 years or longer | 15 |
0.6%
|
| Sysmiss | 26 |