| Value | Category | Cases | |
|---|---|---|---|
| 0 | 27 | 
                                    
                                    8.8%
                                 | |
| 1 | 1 | 
                                    
                                    0.3%
                                 | |
| 2 | 2 | 
                                    
                                    0.6%
                                 | |
| 10 | 1 | 
                                    
                                    0.3%
                                 | |
| 11 | 1 | 
                                    
                                    0.3%
                                 | |
| 12 | 1 | 
                                    
                                    0.3%
                                 | |
| 22 | 1 | 
                                    
                                    0.3%
                                 | |
| 100 | 30 | 
                                    
                                    9.7%
                                 | |
| 1000 | 1 | 
                                    
                                    0.3%
                                 | |
| Missing value | 243 | 
                                    
                                    78.9%
                                 |