| Value |
Category |
| -99 |
-99.Could not observe |
| -97 |
-97.Non direct pit |
| -55 |
-55.Missing |
| 1 |
1.Yes |
| 2 |
2.No |
| 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.