| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1186 |
58.1%
|
| 2 | I have not stopped smoking | 371 |
18.2%
|
| 3 | 1-3 months | 138 |
6.8%
|
| 4 | 4-11 months | 238 |
11.7%
|
| 5 | One year | 42 |
2.1%
|
| 6 | 2 years | 17 |
0.8%
|
| 7 | 3 years or longer | 50 |
2.4%
|
| Sysmiss | 10 |