| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 901 |
82.6%
|
| 2 | I have not stopped smoking | 33 |
3%
|
| 3 | 1-3 months | 38 |
3.5%
|
| 4 | 4-11 months | 21 |
1.9%
|
| 5 | One year | 15 |
1.4%
|
| 6 | 2 years | 21 |
1.9%
|
| 7 | 3 years or longer | 62 |
5.7%
|