| Value | Category | Cases | |
|---|---|---|---|
| 1 | More than usual | 289 | 
                                    
                                    41.9%
                                 | 
| 2 | Same | 201 | 
                                    
                                    29.2%
                                 | 
| 3 | Less than usual | 199 | 
                                    
                                    28.9%
                                 | 
| Sysmiss | 1711 |