| Value | Category | Cases | |
|---|---|---|---|
| 1 | Grass | 1211 | 
                                    
                                    43.9%
                                 | 
| 2 | Iron sheets | 1530 | 
                                    
                                    55.4%
                                 | 
| 3 | Clay tiles | 17 | 
                                    
                                    0.6%
                                 | 
| 4 | Concrete | 2 | 
                                    
                                    0.1%
                                 | 
| 5 | Plastic sheeting | 0 | 
                                    
                                    0%
                                 | 
| 6 | Other, specify | 0 | 
                                    
                                    0%
                                 | 
| 8 | Don't know | 0 | 
                                    
                                    0%
                                 | 
| 9 | Missing | 0 | 
                                    
                                    0%
                                 |