| Code | Definition | Number of Accessions |
| 1 | Most uniform | 75 |
| 2 | (1 = Most uniform, 9 = Least uniform) | 190 |
| 3 | (1 = Most uniform, 9 = Least uniform) | 399 |
| 4 | (1 = Most uniform, 9 = Least uniform) | 352 |
| 5 | (1 = Most uniform, 9 = Least uniform) | 281 |
| 6 | (1 = Most uniform, 9 = Least uniform) | 176 |
| 7 | (1 = Most uniform, 9 = Least uniform) | 109 |
| 8 | (1 = Most uniform, 9 = Least uniform) | 50 |
| 9 | Least uniform | 9 |