| Value | Category | Cases | |
|---|---|---|---|
| 1 | feet | 858 |
38.3%
|
| 2 | meters | 575 |
25.6%
|
| 3 | miles | 37 |
1.6%
|
| 4 | kilometers | 773 |
34.5%
|
| 77 | refuse | 0 |
0%
|
| 88 | dont know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 2727 |