| Value | Category | Cases | |
|---|---|---|---|
| 1 | Road | 0 | 
                                    
                                    0%
                                 | 
| 2 | Rail | 0 | 
                                    
                                    0%
                                 | 
| 3 | Air | 0 | 
                                    
                                    0%
                                 | 
| 4 | Sea | 1 | 
                                    
                                    100%
                                 | 
| 5 | Lake | 0 | 
                                    
                                    0%
                                 | 
| 6 | Not applicable | 0 | 
                                    
                                    0%
                                 | 
| 99 | No other alternative | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 836 |