| Code | Definition | Number of Accessions |
| 1 | 1= [very short], 3= [short], 5= [medium], 7= [long], 9= [very long] | 2 |
| 3 | 1= [very short], 3= [short], 5= [medium], 7= [long], 9= [very long] | 9 |
| 5 | 1= [very short], 3= [short], 5= [medium], 7= [long], 9= [very long] | 33 |
| 7 | 1= [very short], 3= [short], 5= [medium], 7= [long], 9= [very long] | 48 |
| 9 | 1= [very short], 3= [short], 5= [medium], 7= [long], 9= [very long] | 8 |