| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 409 |
61%
|
| 1 | metres | 75 |
11.2%
|
| 2 | kilometres | 167 |
24.9%
|
| 9999995 | missing:impute | 19 |
2.8%
|