| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. yes | 1506 | 
                                    
                                    98.4%
                                 | 
| 2 | 2. no | 1 | 
                                    
                                    0.1%
                                 | 
| 3 | 3. absent | 24 | 
                                    
                                    1.6%
                                 |