| Value | Category | Cases | |
|---|---|---|---|
| 1 | FLAT BOTTOM | 724 |
59%
|
| 2 | FLAT TOP | 54 |
4.4%
|
| 3 | SLIGHTLY SLOPED | 393 |
32%
|
| 4 | VERY STEEP | 57 |
4.6%
|
| Sysmiss | 498 |