| Value | Category | Cases | |
|---|---|---|---|
| 1 | improved | 11 | 
                                    
                                    1.1%
                                 | 
| 2 | traditional | 927 | 
                                    
                                    90.1%
                                 | 
| 3 | IMPROVED RECYCLED | 91 | 
                                    
                                    8.8%
                                 | 
| 4 | OTHER (SPECIFY) | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 985 |