| Value | Category | 
                                    
                    
                        | 0 |  | 
                                    
                    
                        | 1 | maths | 
                                    
                    
                        | 2 | physics | 
                                    
                    
                        | 3 | biology | 
                                    
                    
                        | 4 | chemistry | 
                                    
                    
                        | 5 | Armenian | 
                                    
                    
                        | 6 | foreign languages | 
                                    
                    
                        | 7 | computer | 
                                    
                    
                        | 8 | music | 
                                    
                    
                        | 9 | sport | 
                                    
                    
                        | 10 | artistic education | 
                                    
                    
                        | 11 |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.