| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2785 | 
                                                                 
                                    
                                    80.6%
                                 
                                                             | 
                                                        
                    
| 2 | I did not smoke during the past 12 months | 355 | 
                                                                 
                                    
                                    10.3%
                                 
                                                             | 
                                                        
                    
| 3 | Yes | 206 | 
                                                                 
                                    
                                    6%
                                 
                                                             | 
                                                        
                    
| 4 | No | 110 | 
                                                                 
                                    
                                    3.2%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 2 |