| Value | Category | Cases | |
|---|---|---|---|
| 1 | very large | 78 | 
                                                                 
                                    
                                    4.8%
                                 
                                                             | 
                                                        
                    
| 2 | larger than average | 474 | 
                                                                 
                                    
                                    29%
                                 
                                                             | 
                                                        
                    
| 3 | average | 801 | 
                                                                 
                                    
                                    49.1%
                                 
                                                             | 
                                                        
                    
| 4 | smaller than average | 159 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    
| 5 | very small | 45 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    
| 8 | dk | 60 | 
                                                                 
                                    
                                    3.7%
                                 
                                                             | 
                                                        
                    
| 9 | 15 | 
                                                                 
                                    
                                    0.9%
                                 
                                                             | 
                                                        
                    |
| 11 | .Z | 17122 |