| Code | Definition | Number of Accessions |
| 2 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 1 |
| 3 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 2 |
| 4 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 11 |
| 5 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 29 |
| 6 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 24 |
| 7 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 15 |
| 8 | 1= [very thin], 2= [22.22% of very thick], 3= [33.33% of very thick], 4= [44.44% of very thick], 5= [intermediate], 6= [66.67% of very thick], 7= [77.78% of very thick], 8= [88.89% of very thick], 9= [very thick] | 2 |