| Code | Definition | Number of Accessions |
| 1 | POOR | 1 |
| 2 | (1 = POOR, 9 = VERY UNIFORM) | 10 |
| 3 | (1 = POOR, 9 = VERY UNIFORM) | 25 |
| 4 | (1 = POOR, 9 = VERY UNIFORM) | 49 |
| 5 | MEDIUM | 88 |
| 6 | (1 = POOR, 9 = VERY UNIFORM) | 116 |
| 7 | (1 = POOR, 9 = VERY UNIFORM) | 126 |
| 8 | (1 = POOR, 9 = VERY UNIFORM) | 82 |
| 9 | VERY UNIFORM | 16 |