| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | Airport | 1 |
1.4%
|
| 2 | Land border crossing | 57 |
82.6%
|
| 3 | Seaport | 11 |
15.9%
|
| Sysmiss | 83 |