| Value | Category | Cases | |
|---|---|---|---|
| 1 | all year | 5255 | 
                                    
                                    76%
                                 | 
| 2 | seasonal | 1092 | 
                                    
                                    15.8%
                                 | 
| 3 | occasional | 566 | 
                                    
                                    8.2%
                                 | 
| Sysmiss | 8033 |