| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 10 | natural | 0 |
0%
|
| 11 | sand | 50 |
3.1%
|
| 12 | dirt | 1092 |
67.1%
|
| 20 | rudimentary | 0 |
0%
|
| 30 | finished | 0 |
0%
|
| 32 | vinyl | 5 |
0.3%
|
| 33 | tile | 16 |
1%
|
| 34 | cement | 454 |
27.9%
|
| 35 | carpet | 3 |
0.2%
|
| 96 | other | 7 |
0.4%
|
| Sysmiss | 12 |