| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
4 |
|
| 1 |
Airport |
4 |
|
| 2 |
Land border crossing |
15 |
|
| 3 |
Seaport or waterway |
18 |
|
| Sysmiss |
|
319 |
|
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.
