| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 | 
                                    
                                    1%
                                 | 
| -7 | No internal shipments made (does not apply) | 30 | 
                                    
                                    4.4%
                                 | 
| 0 | No losses | 622 | 
                                    
                                    91.6%
                                 | 
| 1 | 11 | 
                                    
                                    1.6%
                                 | |
| 2 | 5 | 
                                    
                                    0.7%
                                 | |
| 5 | 3 | 
                                    
                                    0.4%
                                 | |
| 100 | 1 | 
                                    
                                    0.1%
                                 | |
| Sysmiss | 276 |