Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.4%
|
1 | Airport | 52 |
19.4%
|
2 | Land border crossing | 6 |
2.2%
|
3 | Seaport or waterway | 209 |
78%
|
Sysmiss | 344 |