| Code | Definition | Number of Accessions |
| 1 | LEAST UNIFORMITY | 1 |
| 2 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 9 |
| 3 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 34 |
| 4 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 74 |
| 5 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 95 |
| 6 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 208 |
| 7 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 270 |
| 8 | (1 = LEAST UNIFORMITY, 9 = MOST UNIFORMITY) | 109 |
| 9 | MOST UNIFORMITY | 16 |