| Value | Category | Cases | |
|---|---|---|---|
| 1 | Plano | 336 |
29.8%
|
| 2 | Aproximadamente cónico | 216 |
19.2%
|
| 3 | Con caballete (forma triangular en los extremos) | 513 |
45.6%
|
| 4 | Ninguno de los anteriores | 59 |
5.2%
|
| 11 | 1 |
0.1%
|
|
| 18 | 1 |
0.1%
|
|
| Sysmiss | 1689 |