| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4942 |
82.2%
|
| 2 | I have not stopped smoking | 393 |
6.5%
|
| 3 | Less than 4 months | 304 |
5.1%
|
| 4 | 4-11 months | 121 |
2%
|
| 5 | One year | 119 |
2%
|
| 6 | 2 years | 44 |
0.7%
|
| 7 | 3 years or longer | 91 |
1.5%
|
| Sysmiss | 146 |