| Code | Definition | Number of Accessions |
| 1 | UNIFORM | 8 |
| 2 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 23 |
| 3 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 38 |
| 4 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 13 |
| 5 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 11 |
| 6 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 4 |
| 7 | (1 = UNIFORM, 9 = EXTREMELY VARIABLE) | 3 |