| Value | Category | Cases | |
|---|---|---|---|
| 1 | Irregular shape | 221 |
54.3%
|
| 2 | Rectangle | 132 |
32.4%
|
| 3 | Square | 48 |
11.8%
|
| 4 | Triangle | 6 |
1.5%
|
| Sysmiss | 162 |