| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3013 | 
                                    
                                    81.3%
                                 | 
| 2 | I do not smoke now | 457 | 
                                    
                                    12.3%
                                 | 
| 3 | Yes | 151 | 
                                    
                                    4.1%
                                 | 
| 4 | No | 85 | 
                                    
                                    2.3%
                                 | 
| Sysmiss | 61 |