| Value | Category | Cases | |
|---|---|---|---|
| 1 | yes, from school/ /educational institution | 157 | 
                                    
                                    2.8%
                                 | 
| 2 | yes, from public source | 37 | 
                                    
                                    0.7%
                                 | 
| 3 | yes, from private donor | 0 | 
                                    
                                    0%
                                 | 
| 4 | yes, do not know the source | 3 | 
                                    
                                    0.1%
                                 | 
| 5 | no | 5390 | 
                                    
                                    96.5%
                                 | 
| Sysmiss | 26775 |