| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
2 |
|
| 1 |
Airport |
21 |
|
| 2 |
Land border crossing |
0 |
|
| 3 |
Seaport or waterway |
174 |
|
| Sysmiss |
|
448 |
|
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.
