| Value | Category | Cases | |
|---|---|---|---|
| 1 | SHELLED | 3149 | 
                                    
                                    64.2%
                                 | 
| 2 | UNSHELLED | 1021 | 
                                    
                                    20.8%
                                 | 
| 3 | NOT APPLICABLE | 736 | 
                                    
                                    15%
                                 | 
| Sysmiss | 369 |