| Value | Category | Cases | |
|---|---|---|---|
| 1 | feet | 1556 |
35.2%
|
| 2 | meters | 921 |
20.8%
|
| 3 | miles | 110 |
2.5%
|
| 4 | kilometers | 1837 |
41.5%
|
| 77 | refuse | 0 |
0%
|
| 88 | dont know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 546 |