| Value | Category | Cases | |
|---|---|---|---|
| 0 | 00 not used at all | 219 | 
                                                                 
                                    
                                    14.4%
                                 
                                                             | 
                                                        
                    
| 1 | 01 | 26 | 
                                                                 
                                    
                                    1.7%
                                 
                                                             | 
                                                        
                    
| 2 | 02 | 39 | 
                                                                 
                                    
                                    2.6%
                                 
                                                             | 
                                                        
                    
| 3 | 03 | 45 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    
| 4 | 04 | 57 | 
                                                                 
                                    
                                    3.8%
                                 
                                                             | 
                                                        
                    
| 5 | 05 | 144 | 
                                                                 
                                    
                                    9.5%
                                 
                                                             | 
                                                        
                    
| 6 | 06 | 92 | 
                                                                 
                                    
                                    6.1%
                                 
                                                             | 
                                                        
                    
| 7 | 07 | 109 | 
                                                                 
                                    
                                    7.2%
                                 
                                                             | 
                                                        
                    
| 8 | 08 | 158 | 
                                                                 
                                    
                                    10.4%
                                 
                                                             | 
                                                        
                    
| 9 | 09 | 58 | 
                                                                 
                                    
                                    3.8%
                                 
                                                             | 
                                                        
                    
| 10 | 10 used a lot | 84 | 
                                                                 
                                    
                                    5.5%
                                 
                                                             | 
                                                        
                    
| 98 | 98 don't know | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| 99 | 99 no answer | 0 | 
                                                                 
                                    
                                    0%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 487 | 
                                                                 
                                    
                                    32.1%
                                 
                                                             |