| Value | Category | Cases | |
|---|---|---|---|
| -9 | Not in universe | 15 | 
                                
                                1.4%
                             | 
| 1 | Standing | 978 | 
                                
                                90.1%
                             | 
| 2 | Recumbent | 92 | 
                                
                                8.5%
                             | 
| 9995 | Missing | 0 | 
                                
                                0%
                             |