| Code | Definition | Number of Accessions |
| 3 | 3= [light], 4= [between light and medium], 5= [medium], 6= [between medium and dark], 7= [dark], 9= [outlier1] | 2 |
| 4 | 3= [light], 4= [between light and medium], 5= [medium], 6= [between medium and dark], 7= [dark], 9= [outlier1] | 1 |
| 5 | 3= [light], 4= [between light and medium], 5= [medium], 6= [between medium and dark], 7= [dark], 9= [outlier1] | 2 |
| 7 | 3= [light], 4= [between light and medium], 5= [medium], 6= [between medium and dark], 7= [dark], 9= [outlier1] | 1 |