| Value | Category | Cases | |
|---|---|---|---|
| 1 | Up to one foot | 2522 |
44.9%
|
| 2 | One to three feet | 2384 |
42.5%
|
| 3 | More than three feet | 706 |
12.6%
|
| 5 | 1 |
0%
|
|
| Sysmiss | 92 |