| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2974 | 
                                    
                                    90.4%
                                 | 
| 2 | I don't smoke now | 144 | 
                                    
                                    4.4%
                                 | 
| 3 | Yes | 44 | 
                                    
                                    1.3%
                                 | 
| 4 | No | 127 | 
                                    
                                    3.9%
                                 | 
| Sysmiss | 24 |