| Value |
Category |
| 1 |
Formal written |
| 2 |
Oral with witness |
| 3 |
Oral without witness |
| 4 |
None(informal) |
| 5 |
Other specify |
| 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.