| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have not stopped smoking | 196 |
18.5%
|
| 2 | One week | 242 |
22.9%
|
| 3 | One month | 114 |
10.8%
|
| 4 | Three months | 93 |
8.8%
|
| 5 | Six months | 81 |
7.6%
|
| 6 | One year | 333 |
31.4%
|
| Sysmiss | 1696 |