| Value | Category | Cases | |
|---|---|---|---|
| 1 | feet | 505 |
37.2%
|
| 2 | meters | 360 |
26.5%
|
| 3 | miles | 26 |
1.9%
|
| 4 | kilometers | 465 |
34.3%
|
| 77 | refuse | 0 |
0%
|
| 88 | dont know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 3614 |