| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 10 | natural | 0 |
0%
|
| 11 | sand | 548 |
2.5%
|
| 12 | dirt | 14827 |
68.7%
|
| 20 | rudimentary | 0 |
0%
|
| 30 | finished | 0 |
0%
|
| 31 | 0 |
0%
|
|
| 32 | vinyl | 11 |
0.1%
|
| 33 | tile | 203 |
0.9%
|
| 34 | cement | 5947 |
27.5%
|
| 35 | carpet | 11 |
0.1%
|
| 96 | other | 46 |
0.2%
|
| Sysmiss | 552 |