| Value | Category | 
|---|---|
| 10 | NATURAL | 
| 11 | Earth/sand | 
| 12 | Dung | 
| 20 | RUDIMENTARY | 
| 21 | Wood planks | 
| 22 | Palm/bamboo | 
| 30 | FINISHED | 
| 31 | Parquet or polished wood | 
| 32 | Vinyl or asphalt strips | 
| 33 | Ceramic tiles | 
| 34 | Cement | 
| 35 | Carpet | 
| 36 | Chips/terrazzo | 
| 37 | Bricks | 
| 38 | Mats | 
| 39 | Marble | 
| 96 | Other |