| Value | Category | Cases | |
|---|---|---|---|
| -9 | Not in universe | 1 | 
                            
                             
                                
                                0.1%
                                                             
                            
                         | 
                        
                    
| 0 | 131 | 
                            
                             
                                
                                11.5%
                                                             
                            
                         | 
                        
                    |
| 1 | 432 | 
                            
                             
                                
                                38.1%
                                                             
                            
                         | 
                        
                    |
| 2 | 401 | 
                            
                             
                                
                                35.3%
                                                             
                            
                         | 
                        
                    |
| 3 | 137 | 
                            
                             
                                
                                12.1%
                                                             
                            
                         | 
                        
                    |
| 4 | 27 | 
                            
                             
                                
                                2.4%
                                                             
                            
                         | 
                        
                    |
| 5 | 4 | 
                            
                             
                                
                                0.4%
                                                             
                            
                         | 
                        
                    |
| 6 | 2 | 
                            
                             
                                
                                0.2%
                                                             
                            
                         | 
                        
                    |
| 9995 | Missing | 0 | 
                            
                             
                                
                                0%
                                                             
                            
                         |