| Value | Category | Cases | |
|---|---|---|---|
| 1 | improved | 1 | 
                                    
                                    0.5%
                                 | 
| 2 | traditional | 166 | 
                                    
                                    88.3%
                                 | 
| 3 | IMPROVED RECYCLED | 21 | 
                                    
                                    11.2%
                                 | 
| 4 | OTHER (SPECIFY) | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 989 |