| Value |
Category |
| -99 |
Observation not possible |
| -98 |
|
| -95 |
|
| 1 |
full wall, metal |
| 2 |
full wall, plastic |
| 3 |
full wall, grass |
| 4 |
half door |
| 5 |
no door |
| 6 |
|
| 7 |
|
| 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.