| Value |
Category |
| -1 |
No especificado |
| 1 |
Tierra |
| 2 |
Cemento o firme |
| 3 |
Madera, mosaico u otro recubrimiento |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.