| Value | Category | Cases | |
|---|---|---|---|
| 1 | free of charge | 3601 | 
                                                         
                                
                                18.8%
                                                             
                                                     | 
                                            
| 2 | paid | 42 | 
                                                         
                                
                                0.2%
                                                             
                                                     | 
                                            
| 3 | private | 0 | 
                                                         
                                
                                0%
                                                             
                                                     | 
                                            
| 11 | 15521 | 
                                                         
                                
                                81%
                                                             
                                                     |