Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.4%
|
1 | Airport | 23 |
8.9%
|
2 | Land border crossing | 48 |
18.7%
|
3 | Seaport or waterway | 185 |
72%
|
Sysmiss | 335 |