Value | Category | Cases | |
---|---|---|---|
1 | up to 1 foot | 3722 |
27.2%
|
2 | 1 to 3 feet | 3218 |
23.5%
|
3 | > 3 feet | 958 |
7%
|
4 | shallow | 895 |
6.5%
|
5 | deep | 2168 |
15.8%
|
6 | dont know | 2743 |
20%
|
Sysmiss | 3480 |