| Value | Category | Cases | |
|---|---|---|---|
| 0 | 00 not used at all | 337 | 
                                                                 
                                    
                                    22.3%
                                 
                                                             | 
                                                        
                    
| 1 | 01 | 51 | 
                                                                 
                                    
                                    3.4%
                                 
                                                             | 
                                                        
                    
| 2 | 02 | 116 | 
                                                                 
                                    
                                    7.7%
                                 
                                                             | 
                                                        
                    
| 3 | 03 | 83 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 4 | 04 | 83 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 5 | 05 | 150 | 
                                                                 
                                    
                                    9.9%
                                 
                                                             | 
                                                        
                    
| 6 | 06 | 67 | 
                                                                 
                                    
                                    4.4%
                                 
                                                             | 
                                                        
                    
| 7 | 07 | 71 | 
                                                                 
                                    
                                    4.7%
                                 
                                                             | 
                                                        
                    
| 8 | 08 | 70 | 
                                                                 
                                    
                                    4.6%
                                 
                                                             | 
                                                        
                    
| 9 | 09 | 15 | 
                                                                 
                                    
                                    1%
                                 
                                                             | 
                                                        
                    
| 10 | 10 used a lot | 34 | 
                                                                 
                                    
                                    2.3%
                                 
                                                             | 
                                                        
                    
| 98 | 98 don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 99 | 99 no answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 434 | 
                                                                 
                                    
                                    28.7%
                                 
                                                             |